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Pangea
Views: 982
Filesize: 279.74kB
Date: Apr 16, 2011
 Banded iron formations
Views: 1267
Filesize: 309.65kB
Date: Apr 16, 2011
 DNA Bonding
Views: 1141
Filesize: 26.55kB
Date: Apr 16, 2011
 Grass Germination
Views: 2866
Filesize: 289.4kB
Date: Apr 16, 2011
Chimpanzee without any hair (mutation)
Views: 12963
Filesize: 65.74kB
Date: Apr 18, 2011
 Human Evolution
Views: 2001
Filesize: 98.16kB
Date: Apr 24, 2011
 Homer Evolution
Views: 2660
Filesize: 260.05kB
Date: May 1, 2011
 Infant and neonatal mortality, 1940 - 2003.
Views: 1124
Filesize: 84.78kB
Date: May 5, 2011
Major causes of hospitalization
Views: 1113
Filesize: 88.27kB
Date: May 5, 2011
 Cone of Learning (adapted from Dale).
Views: 7654
Filesize: 177.87kB
Date: May 5, 2011
 Menstrual cycle summary based on a 28-day (average) menstrual cycle.
Views: 5648
Filesize: 210.93kB
Date: May 5, 2011
 Common sites of endometriosis formation.
Views: 6582
Filesize: 201.28kB
Date: May 5, 2011
Artificial insemination
Views: 5064
Filesize: 134.2kB
Date: May 5, 2011
 Steps involved in in vitro fertilization.
Views: 1275
Filesize: 71.29kB
Date: May 5, 2011
 Oral contraceptive.
Views: 983
Filesize: 252.89kB
Date: May 5, 2011
 Injectable contraceptive.
Views: 5312
Filesize: 227.2kB
Date: May 5, 2011
Laparoscopy for tubal sterilization.
Views: 989
Filesize: 107.46kB
Date: May 5, 2011
 Pelvic inflammatory disease. Chlamydia or gonorrhea spreads up the vagina into the uterus and then t
Views: 1480
Filesize: 155.71kB
Date: May 5, 2011
 Examples of pessaries. (A) Various shapes and sizes of pessaries available. (B) Insertion of one typ
Views: 3678
Filesize: 571.99kB
Date: May 5, 2011
 Common metastatic sites for ovarian cancer.
Views: 6983
Filesize: 197.34kB
Date: May 5, 2011
Intimate partner violence documentation form. (
Views: 1286
Filesize: 266.76kB
Date: May 5, 2011
 The formation of gametes by the process of meiosis is known as gametogenesis.
Views: 10228
Filesize: 187.35kB
Date: May 5, 2011
 Fish Skeletons
Views: 1089
Filesize: 231.09kB
Date: May 23, 2011
 The organization of nucleotide sequences in bacterial chromosomal DNA.
Views: 1273
Filesize: 87.24kB
Date: Jun 7, 2011
The compaction of a bacterial chromosome.
Views: 6841
Filesize: 35.47kB
Date: Jun 7, 2011
 Growth of a bacterial colony.
Views: 1306
Filesize: 148.08kB
Date: Jun 7, 2011
 Bacterial cell division.
Views: 11016
Filesize: 140.79kB
Date: Jun 7, 2011
 Experiment of Lederberg and Tatum demonstrating gene transfer in E. coli.
Views: 4432
Filesize: 100.66kB
Date: Jun 7, 2011
A U-tube apparatus like the one used by Bernard Davis.
Views: 5890
Filesize: 36.96kB
Date: Jun 7, 2011
 Bacterial conjugation.
Views: 3733
Filesize: 205.3kB
Date: Jun 7, 2011
 The steps of bacterial transformation.
Views: 25664
Filesize: 131.78kB
Date: Jun 7, 2011
 The evolution of the vertebrate jaw
Views: 6846
Filesize: 121.07kB
Date: Jun 7, 2011
Generalized body plan of a bony fish
Views: 8377
Filesize: 69.58kB
Date: Jun 7, 2011
 Transitional forms between dinosaurs and birds
Views: 2618
Filesize: 70.16kB
Date: Jun 9, 2011
 Evolutionary tree for the primates
Views: 9420
Filesize: 98.27kB
Date: Jun 9, 2011
 Primate classification
Views: 1211
Filesize: 62.54kB
Date: Jun 9, 2011
A possible scenario for human evolution
Views: 7947
Filesize: 39.01kB
Date: Jun 9, 2011
 Seven characteristics are common to all life
Views: 1549
Filesize: 314.95kB
Date: Jun 10, 2011
 The levels of biological organization
Views: 12354
Filesize: 131.07kB
Date: Jun 10, 2011
 An example of modification of a structure for a new function
Views: 1286
Filesize: 81.25kB
Date: Jun 10, 2011
An example showing a modification that has occurred as a result of biological evolution
Views: 1407
Filesize: 63.41kB
Date: Jun 10, 2011
 An example of vertical evolution: the horse
Views: 6179
Filesize: 62.15kB
Date: Jun 10, 2011
 An example of horizontal gene transfer: antibiotic resistance
Views: 1780
Filesize: 73.79kB
Date: Jun 10, 2011
 Taxonomic and evolutionary groupings leading to the jaguar
Views: 1803
Filesize: 78.7kB
Date: Jun 10, 2011
How the study of genomes and proteomes can provide us with connections to different biological level
Views: 1618
Filesize: 91.62kB
Date: Jun 10, 2011
 Biological investigation at different levels
Views: 1686
Filesize: 298.42kB
Date: Jun 10, 2011
 A hypothesis that suggests an explanation of the function of the gene that is defective in patients
Views: 1434
Filesize: 115.46kB
Date: Jun 10, 2011
 Rutherford's gold foil experiment demonstrating that most of the volume of an atom is empty spa
Views: 4635
Filesize: 120.52kB
Date: Jun 10, 2011
A portion of the periodic table of elements
Views: 1248
Filesize: 65.9kB
Date: Jun 13, 2011
 The formation of covalent bonds
Views: 1348
Filesize: 52.66kB
Date: Jun 13, 2011
 A double bond between two oxygen atoms
Views: 1862
Filesize: 94.13kB
Date: Jun 13, 2011
 Polar covalent bonds in water molecules
Views: 4101
Filesize: 55.19kB
Date: Jun 13, 2011
Examples of hydrogen bonds
Views: 1846
Filesize: 46.74kB
Date: Jun 13, 2011
 Examples of hydrogen bonds and DNA
Views: 9475
Filesize: 77.07kB
Date: Jun 13, 2011
 Ionic bonding in table salt (NaCl)
Views: 3821
Filesize: 62.59kB
Date: Jun 13, 2011
 The formation of micelles by amphipathic molecules
Views: 3863
Filesize: 135.06kB
Date: Jun 13, 2011
The pH scale and the relative acidities of common substances
Views: 4522
Filesize: 96.39kB
Date: Jun 13, 2011
 Models for the electron orbitals and energy shells of carbon
Views: 1425
Filesize: 77.71kB
Date: Jun 13, 2011
 Nonpolar and polar bonds in an organic molecule
Views: 1414
Filesize: 35.09kB
Date: Jun 13, 2011
 The stability of carbon bonds makes life possible even in extreme environments
Views: 1729
Filesize: 187.78kB
Date: Jun 13, 2011
Monosaccharide structure
Views: 2371
Filesize: 70.56kB
Date: Jun 13, 2011
 Formation of a disaccharide
Views: 1841
Filesize: 65.14kB
Date: Jun 13, 2011
 The formation of a fat
Views: 1098
Filesize: 36.31kB
Date: Jun 13, 2011
 Structure of cholesterol and steroid hormones derived from cholesterol
Views: 1516
Filesize: 169.09kB
Date: Jun 13, 2011
The chemistry of polypeptide formation
Views: 5248
Filesize: 63.01kB
Date: Jun 13, 2011
 The primary structure of ribonuclease
Views: 4810
Filesize: 111.47kB
Date: Jun 13, 2011
 Protein–protein interaction
Views: 1291
Filesize: 32.48kB
Date: Jun 13, 2011
 Anfinsen's experiments with ribonuclease demonstrating that the primary structure of a polypept
Views: 4415
Filesize: 147.21kB
Date: Jun 13, 2011
DNA X-ray Diffraction
Views: 916
Filesize: 15.5kB
Date: Jun 13, 2011
 Watson and Crick
Views: 1147
Filesize: 5.33kB
Date: Jun 13, 2011
 DNA Pioneers
Views: 886
Filesize: 34.86kB
Date: Jun 13, 2011
 A comparison of the sizes of various chemical and biological structures, and the resolving power of
Views: 5324
Filesize: 50.51kB
Date: Jun 14, 2011
A comparison of electron and light microscope technologies
Views: 1406
Filesize: 66.96kB
Date: Jun 14, 2011
 A comparison of transmission and scanning electron microscopy
Views: 1572
Filesize: 96.71kB
Date: Jun 14, 2011
 Formation and structure of a peroxisome
Views: 3677
Filesize: 69.49kB
Date: Jun 14, 2011
 Motor proteins and their interactions with cytoskeletal filaments.
Views: 3881
Filesize: 88.39kB
Date: Jun 14, 2011
Cellular movements caused by the actions of flagella and cilia
Views: 1745
Filesize: 28.98kB
Date: Jun 14, 2011
 Amoeboid movement promoted by changes in the locations of actin filaments.
Views: 10326
Filesize: 72.43kB
Date: Jun 14, 2011
 Movement of myosin-coated beads along actin filaments.
Views: 2490
Filesize: 146.86kB
Date: Jun 14, 2011
 Structure of a mitochondrion
Views: 3111
Filesize: 105.25kB
Date: Jun 14, 2011
Semiautonomous organelles
Views: 3449
Filesize: 100.95kB
Date: Jun 14, 2011
 Proteomes and their relationship to cell structure, function, and organization.
Views: 1383
Filesize: 155.63kB
Date: Jun 14, 2011
 Information flows from the nucleus to the cytoplasm and back.
Views: 1560
Filesize: 180.61kB
Date: Jun 17, 2011
 Division of mitochondria by binary fission
Views: 9178
Filesize: 167.06kB
Date: Jun 17, 2011
Palade's use of the pulse-chase method to study protein secretion
Views: 5830
Filesize: 62.29kB
Date: Jun 17, 2011
 Palade's use of the pulse-chase method to study protein secretion
Views: 4681
Filesize: 67.93kB
Date: Jun 17, 2011
 First step in cotranslational protein localization: cotranslational sorting
Views: 10099
Filesize: 64.5kB
Date: Jun 17, 2011
 Second step in cotranslational protein localization: vesicle transport from the endoplasmic reticulu
Views: 8478
Filesize: 60.62kB
Date: Jun 17, 2011
Insertion of membrane proteins into the ER membrane
Views: 4395
Filesize: 126.25kB
Date: Jun 17, 2011
 N-linked glycosylation in the endoplasmic reticulum
Views: 1650
Filesize: 128.12kB
Date: Jun 17, 2011
 Post-translational sorting of a protein to the mitochondrial matrix
Views: 7036
Filesize: 59.86kB
Date: Jun 17, 2011
 Protein degradation via the proteasome
Views: 1238
Filesize: 43.72kB
Date: Jun 17, 2011
Protein degradation via the proteasome
Views: 1154
Filesize: 129.79kB
Date: Jun 17, 2011
 Elastic fibres are made of elastin, one type of structural protein found in the ECM of animal cells
Views: 8472
Filesize: 66.68kB
Date: Jun 17, 2011
 Types of anchoring junctions
Views: 4312
Filesize: 213.38kB
Date: Jun 17, 2011
 Types of cell adhesion molecules (CAMs)
Views: 1322
Filesize: 68.08kB
Date: Jun 17, 2011
Cell signalling via integrins in anchoring junctions
Views: 1287
Filesize: 106.59kB
Date: Jun 17, 2011
 Tight junctions between adjacent intestinal cells
Views: 1590
Filesize: 141.07kB
Date: Jun 17, 2011
 An electron micrograph from an experiment demonstrating the function of a tight junction
Views: 1217
Filesize: 93.55kB
Date: Jun 17, 2011
 Gap junctions between adjacent cells
Views: 1384
Filesize: 70.23kB
Date: Jun 17, 2011
Use of fluorescent molecules by Lowenstein and colleagues to determine the size of gap-junction chan
Views: 1402
Filesize: 169.89kB
Date: Jun 17, 2011
 Plant cell-to-cell junctions known as middle lamella
Views: 1556
Filesize: 138.31kB
Date: Jun 17, 2011
 Attachment of transmembrane proteins to the cytoskeleton and extracellular matrix of an animal cell.
Views: 4486
Filesize: 93.69kB
Date: Jun 20, 2011
 Electron micrographs of a cellular membrane.
Views: 1270
Filesize: 201.52kB
Date: Jun 20, 2011
The phenomenon of osmosis.
Views: 7078
Filesize: 67.49kB
Date: Jun 20, 2011
 The contractile vacuole in Paramecium caudatum.
Views: 13914
Filesize: 92.73kB
Date: Jun 20, 2011
 Function and structure of aquaporin
Views: 1962
Filesize: 123.86kB
Date: Jun 20, 2011
 Types of transporters based on the direction of transport.
Views: 1328
Filesize: 134.24kB
Date: Jun 20, 2011
Transporters that function as pumps.
Views: 1422
Filesize: 83.31kB
Date: Jun 20, 2011
 Structure and function of the Na+/K+ pump.
Views: 1405
Filesize: 68.37kB
Date: Jun 20, 2011
 Activation energy of a chemical reaction
Views: 2649
Filesize: 87.53kB
Date: Jun 20, 2011
 The steps of an enzyme-catalyzed reaction
Views: 1514
Filesize: 42.17kB
Date: Jun 20, 2011
Redox reactions
Views: 1195
Filesize: 143.53kB
Date: Jun 20, 2011
 Feedback inhibition
Views: 1640
Filesize: 38.86kB
Date: Jun 20, 2011
 Oxidative phosphorylation
Views: 1674
Filesize: 143.02kB
Date: Jun 20, 2011
 The relationship between free energy and electron movement along the electron transport chain
Views: 4687
Filesize: 70.51kB
Date: Jun 20, 2011
The subunit structure and function of the ATP synthase
Views: 1324
Filesize: 99.85kB
Date: Jun 20, 2011
 Integration of protein, carbohydrate, and fat metabolism
Views: 1793
Filesize: 121.05kB
Date: Jun 20, 2011
 An example of anaerobic respiration in E. coli
Views: 9276
Filesize: 111.41kB
Date: Jun 20, 2011
 Examples of fermentation
Views: 1185
Filesize: 67.82kB
Date: Jun 20, 2011
Phenolic compounds as secondary metabolites
Views: 1239
Filesize: 121.27kB
Date: Jun 20, 2011
 Alkaloids as secondary metabolites
Views: 1097
Filesize: 44.93kB
Date: Jun 20, 2011
 Terpenoids as secondary metabolites
Views: 1257
Filesize: 88.14kB
Date: Jun 20, 2011
 Polyketides as secondary metabolites
Views: 1519
Filesize: 88.47kB
Date: Jun 20, 2011
Leaf organization
Views: 1309
Filesize: 249.57kB
Date: Jun 21, 2011
 An overview of the two stages of photosynthesis: light reactions and the Calvin cycle
Views: 6330
Filesize: 140.96kB
Date: Jun 21, 2011
 Absorption of light energy by an electron
Views: 1276
Filesize: 27.23kB
Date: Jun 21, 2011
 The absorption of light energy by pigment molecules in the light-harvesting complex, and the path th
Views: 1485
Filesize: 164.52kB
Date: Jun 21, 2011
A closer look at the structure and function of photosystem II
Views: 1631
Filesize: 104.57kB
Date: Jun 21, 2011
 The synthesis of O2, ATP, and NADPH by the concerted actions of photosystems II and I
Views: 3127
Filesize: 124.87kB
Date: Jun 21, 2011
 The enhancement effect observed by Emerson.
Views: 4643
Filesize: 46.41kB
Date: Jun 21, 2011
 The Z scheme, which depicts the energy of an electron as it moves from photosystem II to NADP+
Views: 8099
Filesize: 42.15kB
Date: Jun 21, 2011
Cyclic photophosphorylation
Views: 2746
Filesize: 76.15kB
Date: Jun 21, 2011
 Homologous proteins in the electron transport chains of mitochondria and chloroplasts
Views: 1370
Filesize: 201.76kB
Date: Jun 21, 2011
 The determination of the Calvin cycle by using labelling of CO2 with 14C
Views: 2161
Filesize: 115.07kB
Date: Jun 21, 2011
 Leaf structure and its relationship to the C4 cycle
Views: 6336
Filesize: 82.39kB
Date: Jun 21, 2011
A comparison of C4 and CAM plants
Views: 4203
Filesize: 74.87kB
Date: Jun 21, 2011
 Response of a yeast cell to glucose
Views: 1280
Filesize: 79.76kB
Date: Jun 21, 2011
 Examples of cell-to-cell communication based on the distance between cells
Views: 1882
Filesize: 91.97kB
Date: Jun 21, 2011
 The three stages of cell signalling: receptor activation, signal transduction, and a cellular respon
Views: 2081
Filesize: 66.5kB
Date: Jun 21, 2011
Receptor activation
Views: 1293
Filesize: 78.33kB
Date: Jun 21, 2011
 The activation of G-protein-coupled receptors and G proteins
Views: 1408
Filesize: 75.94kB
Date: Jun 21, 2011
 The function of a ligand-gated ion channel
Views: 1449
Filesize: 75.48kB
Date: Jun 21, 2011
 An example of a two-component regulatory system in bacteria
Views: 4371
Filesize: 117.92kB
Date: Jun 21, 2011
The epidermal growth factor (EGF) pathway that promotes cell division
Views: 5028
Filesize: 93.39kB
Date: Jun 21, 2011
 A signal transduction pathway involving cAMP
Views: 7471
Filesize: 138.34kB
Date: Jun 21, 2011
 The cellular response of skeletal muscle cells to epinephrine
Views: 2141
Filesize: 108.96kB
Date: Jun 21, 2011
 Signal amplification
Views: 5396
Filesize: 57.7kB
Date: Jun 21, 2011
The rapid speed of cAMP production
Views: 1423
Filesize: 37kB
Date: Jun 21, 2011
 A signal transduction pathway involving diacylglycerol (DAG), inositol trisphosphate (IP3), and chan
Views: 2624
Filesize: 94.3kB
Date: Jun 21, 2011
 Griffith's experiments that showed the transformation of bacteria by a “transfor
Views: 7598
Filesize: 132.29kB
Date: Jun 23, 2011
 The Avery, MacLeod, and McCarty experiments that identified DNA as Griffith's transformation pr
Views: 7876
Filesize: 122.12kB
Date: Jun 23, 2011
Nucleotides and their components
Views: 1776
Filesize: 101.21kB
Date: Jun 23, 2011
 Conventional numbering in a DNA nucleotide
Views: 7339
Filesize: 26.23kB
Date: Jun 23, 2011
 Rosalind Franklin and X-ray diffraction applied to DNA wet fibres
Views: 9425
Filesize: 136.85kB
Date: Jun 23, 2011
 Watson and Crick and their model of the DNA double helix
Views: 6014
Filesize: 71.89kB
Date: Jun 23, 2011
Three mechanisms for DNA replication
Views: 1368
Filesize: 181.05kB
Date: Jun 23, 2011
 The Meselson and Stahl experiment showing that DNA replication is semiconservative
Views: 2590
Filesize: 162.25kB
Date: Jun 23, 2011
 DNA replication according to the AT/GC rule
Views: 1330
Filesize: 188.7kB
Date: Jun 23, 2011
 Origins of replication in the chromosomes of different organisms
Views: 1404
Filesize: 72.77kB
Date: Jun 23, 2011
DNA replication is bidirectional from each origin, creating two forks per origin
Views: 1485
Filesize: 210.29kB
Date: Jun 23, 2011
 Nucleotides and their components
Views: 1271
Filesize: 101.21kB
Date: Jun 23, 2011
 Proteins that facilitate the formation and movement of a replication fork
Views: 1370
Filesize: 84.38kB
Date: Jun 23, 2011
 Enzymatic features of DNA polymerase that account for its inability to copy one of the DNA strands a
Views: 1469
Filesize: 71.63kB
Date: Jun 23, 2011
Mechanism of DNA replication by telomerase
Views: 1319
Filesize: 200.89kB
Date: Jun 23, 2011
 The metabolic pathway that breaks down phenylalanine and its relationship to certain genetic disease
Views: 5961
Filesize: 121.17kB
Date: Jun 23, 2011
 A structural gene as a transcriptional unit
Views: 5710
Filesize: 83.72kB
Date: Jun 23, 2011
 Stages of transcription
Views: 8856
Filesize: 86.16kB
Date: Jun 23, 2011
The transcription of three different genes that are found in the same chromosome.
Views: 1594
Filesize: 52.42kB
Date: Jun 23, 2011
 Leder's experiment showing the binding of mRNA to DNA that contains an intron
Views: 2094
Filesize: 88.09kB
Date: Jun 23, 2011
 Modifications to eukaryotic pre-mRNA are needed to create a functional (mature) mRNA molecule
Views: 3312
Filesize: 163.28kB
Date: Jun 23, 2011
 Modifications that occur at the ends of mRNA in eukaryotic cells.
Views: 1213
Filesize: 53.93kB
Date: Jun 23, 2011
The organization of mRNA as a translational unit
Views: 1221
Filesize: 77.16kB
Date: Jun 24, 2011
 Relationships among the coding sequence of a gene, the codon sequence of an mRNA, the anticodons of
Views: 2354
Filesize: 80.98kB
Date: Jun 24, 2011
 Comparison of small subunit rRNA gene sequences from three eukaryotes and three bacterial species
Views: 1441
Filesize: 99.17kB
Date: Jun 24, 2011
 Initiation stage of translation in bacteria
Views: 6155
Filesize: 135.35kB
Date: Jun 24, 2011
An overview of the stages of translation
Views: 1485
Filesize: 64.26kB
Date: Jun 24, 2011
 Elongation stage of translation in bacteria
Views: 3349
Filesize: 190.7kB
Date: Jun 24, 2011
 Termination stage of translation in bacteria
Views: 3855
Filesize: 113.49kB
Date: Jun 24, 2011
 The directionality of a polypeptide compared to an mRNA
Views: 1341
Filesize: 66.24kB
Date: Jun 24, 2011
Gene regulation of lactose use in E. coli
Views: 1797
Filesize: 58.67kB
Date: Jun 24, 2011
 Developmental regulation of human globin genes
Views: 1341
Filesize: 83.55kB
Date: Jun 24, 2011
 Overview of points of control for gene regulation in (a) prokaryotes and (b) eukaryotes
Views: 1510
Filesize: 96.42kB
Date: Jun 24, 2011
 Actions of regulatory transcription factors and small effector molecules
Views: 3331
Filesize: 72.88kB
Date: Jun 24, 2011
The lac operon
Views: 4817
Filesize: 69.32kB
Date: Jun 24, 2011
 Negative control of an inducible set of genes: function of the lac repressor in regulating the lac o
Views: 1676
Filesize: 100.89kB
Date: Jun 24, 2011
 Jacob, Monod, and Pardee's hypothesis for the function of the lacI region
Views: 2401
Filesize: 47kB
Date: Jun 24, 2011
 The experiment performed by Jacob, Monod, and Pardee to study a lacI constitutive mutant
Views: 6620
Filesize: 116.04kB
Date: Jun 24, 2011
Positive regulation of the lac operon by the catabolite activator protein (CAP)
Views: 1474
Filesize: 113.33kB
Date: Jun 24, 2011
 Effects of lactose and glucose on the expression of the lac operon
Views: 3970
Filesize: 74.16kB
Date: Jun 24, 2011
 Negative control of a repressible set of genes: function of the trp repressor and corepressor in reg
Views: 1546
Filesize: 48.87kB
Date: Jun 24, 2011
 A common organization of sequences for the promoter of a eukaryotic structural gene
Views: 3772
Filesize: 48.13kB
Date: Jun 24, 2011
The preinitiation complex
Views: 3544
Filesize: 28.88kB
Date: Jun 24, 2011
 Effects of an activator on chromatin compaction
Views: 1062
Filesize: 37.83kB
Date: Jun 24, 2011
 Action of the glucocorticoid receptor as a transcriptional activator
Views: 1316
Filesize: 84.45kB
Date: Jun 24, 2011
 Interaction of transcription factors with DNA
Views: 1318
Filesize: 135.46kB
Date: Jun 24, 2011
Mechanism of action of microRNA (miRNA)
Views: 3778
Filesize: 115.75kB
Date: Jun 24, 2011
 Translational regulation of ferritin mRNA by the iron regulatory protein (IRP)
Views: 5855
Filesize: 110.34kB
Date: Jun 24, 2011
 A missense mutation that causes red blood cells to sickle in sickle-cell anemia.
Views: 4926
Filesize: 60.57kB
Date: Jun 25, 2011
 The effects of germ-line versus somatic cell mutations.
Views: 10551
Filesize: 89.64kB
Date: Jun 25, 2011
Example of a somatic mutation
Views: 6085
Filesize: 44.93kB
Date: Jun 25, 2011
 Deamination and mispairing of modified bases by a chemical mutagen.
Views: 2280
Filesize: 78.8kB
Date: Jun 25, 2011
 Formation and structure of a thymine dimer
Views: 3985
Filesize: 63.85kB
Date: Jun 25, 2011
 Nucleotide excision repair in E. coli
Views: 6897
Filesize: 215.77kB
Date: Jun 25, 2011
Oocyte maturation in certain species of frogs
Views: 1230
Filesize: 69.13kB
Date: Jun 25, 2011
 The progression and effects of cancer.
Views: 1202
Filesize: 72.34kB
Date: Jun 25, 2011
 General features of a growth factor or hormone signalling pathway that promotes cell division
Views: 1814
Filesize: 63.75kB
Date: Jun 25, 2011
 Genetic changes that convert proto-oncogenes to oncogenes
Views: 1492
Filesize: 226.94kB
Date: Jun 25, 2011
A missense mutation that converts the normal ras gene into an oncogene.
Views: 1569
Filesize: 52.48kB
Date: Jun 25, 2011
 The formation of a chimeric gene that is found in people with certain forms of leukemia.
Views: 1343
Filesize: 59.94kB
Date: Jun 25, 2011
 Function of the Rb protein
Views: 1392
Filesize: 87.26kB
Date: Jun 25, 2011
 Progression of changes leading to lung cancer
Views: 1854
Filesize: 133.07kB
Date: Jun 25, 2011
A comparison between chromosomes found in a normal human cell and a cancer cell from the same person
Views: 1828
Filesize: 38.55kB
Date: Jun 25, 2011
 Noll's DNase-I digestion experiment, which verified the beads-on-a-string model of DNA compacti
Views: 4966
Filesize: 125.89kB
Date: Jun 25, 2011
 Noll's DNase-I digestion experiment, which verified the beads-on-a-string model of DNA compacti
Views: 3104
Filesize: 30.91kB
Date: Jun 25, 2011
 The steps in eukaryotic chromosomal compaction leading to the metaphase chromosome
Views: 8751
Filesize: 118.8kB
Date: Jun 25, 2011
The importance of histones and scaffolding proteins in the compaction of eukaryotic chromosomes.
Views: 3111
Filesize: 156.91kB
Date: Jun 25, 2011
 Examples of covalent modifications that occur to the amino terminal tails of histone proteins. The a
Views: 1648
Filesize: 72.22kB
Date: Jun 25, 2011
 Replication and compaction of chromosomes into pairs of sister chromatids.
Views: 1935
Filesize: 95.66kB
Date: Jun 25, 2011
 The eukaryotic cell cycle and cell division in an organism with six chromosomes.
Views: 5192
Filesize: 81.85kB
Date: Jun 25, 2011
Types of variation in chromosome number.
Views: 6036
Filesize: 109.41kB
Date: Jun 25, 2011
 Nondisjunction during the formation of haploid cells.
Views: 1949
Filesize: 80.79kB
Date: Jun 25, 2011
 A comparison of alloploidy (seen in species hybrids) and new allopolyploid species.
Views: 7011
Filesize: 99.07kB
Date: Jun 25, 2011
 Polyploidy has been an important factor in the evolution of plants.
Views: 6646
Filesize: 55.94kB
Date: Jun 25, 2011
How the law of segregation of alleles explains Mendel's observed ratios
Views: 4291
Filesize: 91.84kB
Date: Jun 27, 2011
 The chromosomal basis of allele segregation.
Views: 9274
Filesize: 106.5kB
Date: Jun 27, 2011
 Different mechanisms of sex determination in animals.
Views: 1772
Filesize: 126.72kB
Date: Jun 27, 2011
 How genes produce proteins that determine traits in a simple dominant-recessive relationship.
Views: 1649
Filesize: 90.82kB
Date: Jun 27, 2011
The norm of reaction
Views: 4838
Filesize: 55.12kB
Date: Jun 27, 2011
 Environmental influences on the expression of PKU within a single family
Views: 1675
Filesize: 86.23kB
Date: Jun 27, 2011
 Continuous variation in a polygenic trait.
Views: 3374
Filesize: 55.78kB
Date: Jun 27, 2011
 The locations of genetic material in animal and plant cells.
Views: 1722
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Date: Jun 27, 2011
Plastid composition of egg cells from green, white, and variegated four-o'clock plants.
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Filesize: 110.88kB
Date: Jun 27, 2011
 X chromosome inactivation in female mammals produces the Barr Body.
Views: 6093
Filesize: 31.67kB
Date: Jun 27, 2011
 Random X-chromosome inactivation in a calico cat.
Views: 6320
Filesize: 152.63kB
Date: Jun 27, 2011
 The process of X inactivation
Views: 5210
Filesize: 49.22kB
Date: Jun 27, 2011
Genomic imprinting via DNA methylation.
Views: 2289
Filesize: 177.06kB
Date: Jun 27, 2011
 The inheritance of snail coiling direction as an example of a maternal effect gene.
Views: 6728
Filesize: 100.1kB
Date: Jun 27, 2011
 Variations in the structure of viruses.
Views: 1760
Filesize: 169.54kB
Date: Jun 27, 2011
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Views: 2186
Filesize: 108.5kB
Date: Jun 27, 2011
Comparison of the steps of two viral reproductive cycles.
Views: 1395
Filesize: 88.04kB
Date: Jun 27, 2011
 A proposed molecular mechanism of prion diseases.
Views: 1517
Filesize: 169.73kB
Date: Jun 27, 2011
 The organization of nucleotide sequences in bacterial chromosomal DNA.
Views: 1402
Filesize: 87.24kB
Date: Jun 27, 2011
 Growth of a bacterial colony.
Views: 1315
Filesize: 148.08kB
Date: Jun 27, 2011
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Views: 4946
Filesize: 100.66kB
Date: Jun 27, 2011
 A U-tube apparatus like the one used by Bernard Davis.
Views: 6362
Filesize: 36.96kB
Date: Jun 27, 2011
 Molecular mechanisms that convey positional information.
Views: 2573
Filesize: 105.51kB
Date: Jun 28, 2011
 The bicoid mutation in Drosophila.
Views: 4223
Filesize: 53.93kB
Date: Jun 28, 2011
Asymmetrical localization of gene products during egg development in Drosophila
Views: 1431
Filesize: 36.54kB
Date: Jun 28, 2011
 The organization of segments in the Drosophila embryo
Views: 1278
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Date: Jun 28, 2011
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Views: 3501
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Date: Jun 28, 2011
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Filesize: 59kB
Date: Jun 28, 2011
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Views: 6193
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Date: Jun 28, 2011
 The Antennapedia mutation in Drosophila
Views: 13487
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Date: Jun 28, 2011
 Gene duplication increases genetic complexity
Views: 1231
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Date: Jun 28, 2011
 Conservation and colinearity of homeotic genes
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Date: Jun 28, 2011
Davis, Weintraub, and Lasser and the promotion of muscle cell differentiation in fibroblasts by the
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Filesize: 121.45kB
Date: Jun 28, 2011
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Views: 1522
Filesize: 142.89kB
Date: Jun 28, 2011
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Date: Jun 28, 2011
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Date: Jun 28, 2011
Step 3 of gene cloning: The cloning of a recombinant vector.
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Date: Jun 28, 2011
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Filesize: 210.16kB
Date: Jun 28, 2011
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Filesize: 99.58kB
Date: Jun 28, 2011
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Views: 925
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Date: Jun 28, 2011
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Filesize: 254.47kB
Date: Jun 28, 2011
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Views: 1292
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Date: Jun 28, 2011
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Views: 1173
Filesize: 89.43kB
Date: Jun 29, 2011
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Views: 2083
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Date: Jun 29, 2011
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Filesize: 131.88kB
Date: Jun 29, 2011
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Date: Jul 12, 2011
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Views: 2256
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Date: Jul 12, 2011
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Views: 3756
Filesize: 66.19kB
Date: Jul 12, 2011
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Views: 2337
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Date: Jul 12, 2011
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Date: Jul 12, 2011
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Views: 1365
Filesize: 266.38kB
Date: Jul 12, 2011
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Views: 2548
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Date: Jul 12, 2011
The Grants' investigation of natural selection in finches.
Views: 1290
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Date: Jul 12, 2011
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Views: 1478
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Date: Jul 12, 2011
 An example of genetic homology: a comparison of a short amino acid sequence within the p53 protein f
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Filesize: 70.42kB
Date: Jul 12, 2011
 Directional selection.
Views: 1563
Filesize: 68.8kB
Date: Jul 12, 2011
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Date: Jul 12, 2011
 A comparison between anagenesis and cladogenesis: two patterns of speciation.
Views: 9388
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Date: Jul 14, 2011
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Date: Jul 14, 2011
 Relationship between Hox gene number and body complexity in different types of animals.
Views: 1676
Filesize: 76.97kB
Date: Jul 14, 2011
Formation of additional eyes in Drosophila caused by the abnormal expression of a master control gen
Views: 4113
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Date: Jul 14, 2011
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Views: 1311
Filesize: 32.59kB
Date: Jul 30, 2011
 Energy of Electron according to Electron Shells
Views: 3198
Filesize: 148.31kB
Date: Sep 16, 2011
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Views: 1105
Filesize: 106.52kB
Date: Sep 22, 2011
Synthesis of Deoxy-ribo nucleotide from Ribo nucleotide
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Filesize: 89.35kB
Date: Oct 16, 2011
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Views: 2518
Filesize: 12.6kB
Date: Oct 16, 2011
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Filesize: 9.1kB
Date: Nov 7, 2011
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Filesize: 71.72kB
Date: Nov 29, 2011
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Filesize: 8.86kB
Date: Dec 26, 2011
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Filesize: 102.56kB
Date: Jan 7, 2012
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Filesize: 81.02kB
Date: Feb 13, 2012
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Date: Feb 14, 2012
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Filesize: 913.06kB
Date: Feb 19, 2012
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Filesize: 213.59kB
Date: Mar 5, 2012
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Filesize: 87kB
Date: Mar 28, 2012
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Date: Mar 28, 2012
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Filesize: 395.7kB
Date: Apr 3, 2012
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Filesize: 440.4kB
Date: Feb 17, 2018
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Filesize: 472.73kB
Date: Mar 1, 2018
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Filesize: 223.26kB
Date: Mar 1, 2018
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Filesize: 30.75kB
Date: May 23, 2012
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Date: Jun 19, 2012
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Filesize: 37.99kB
Date: Oct 1, 2017
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Date: Aug 14, 2012
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Date: Aug 14, 2012
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Date: Aug 22, 2012
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Filesize: 99.43kB
Date: Aug 28, 2012
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Date: Sep 3, 2012
Allergic response by allergens.
Views: 1174
Filesize: 124.69kB
Date: Sep 4, 2012
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Views: 2357
Filesize: 170.6kB
Date: Sep 4, 2012
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Filesize: 382.15kB
Date: Feb 17, 2018
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Date: Feb 17, 2018
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Date: Feb 17, 2018
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Filesize: 148.25kB
Date: Sep 7, 2012
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Date: Sep 7, 2012
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Views: 1122
Filesize: 197.04kB
Date: Sep 7, 2012
electron microscope image of a pyralidae moth
Views: 2361
Filesize: 170.67kB
Date: Sep 7, 2012
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Views: 1124
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Date: Sep 7, 2012
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Date: Sep 7, 2012
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Date: Sep 7, 2012
the fibrous configuration of a dry macrofoam sponge swab
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Filesize: 181.43kB
Date: Sep 7, 2012
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Filesize: 101.36kB
Date: Sep 7, 2012
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Filesize: 131.92kB
Date: Sep 7, 2012
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Filesize: 124.5kB
Date: Sep 7, 2012
Electron microscopic image of dinoflagellates
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Date: Sep 7, 2012
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Filesize: 79.56kB
Date: Sep 7, 2012
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Filesize: 119.63kB
Date: Sep 7, 2012
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Filesize: 59.22kB
Date: Sep 7, 2012
Electron Microscope Images of a Diatom
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Filesize: 168.88kB
Date: Sep 7, 2012
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Filesize: 168.24kB
Date: Sep 7, 2012
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Filesize: 148.29kB
Date: Sep 7, 2012
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Filesize: 64.99kB
Date: Sep 7, 2012
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Filesize: 72.65kB
Date: Sep 7, 2012
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Filesize: 84.58kB
Date: Sep 7, 2012
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Date: Sep 7, 2012
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Filesize: 185.81kB
Date: Sep 7, 2012
Mosquito Eyes Up Close: Electron Microscope Image Creates Stunning View Of Insect
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Filesize: 162.69kB
Date: Sep 7, 2012
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Filesize: 95.44kB
Date: Sep 7, 2012
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Filesize: 64.89kB
Date: Sep 7, 2012
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Filesize: 71.76kB
Date: Sep 7, 2012
Insects Under the Electron Microscope
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Filesize: 68.99kB
Date: Sep 7, 2012
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Date: Sep 7, 2012
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Date: Sep 7, 2012
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Filesize: 77.3kB
Date: Sep 7, 2012
Insects Under the Electron Microscope
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Filesize: 75.85kB
Date: Sep 7, 2012
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Filesize: 99.58kB
Date: Sep 7, 2012
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Filesize: 75.18kB
Date: Sep 7, 2012
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Filesize: 96.89kB
Date: Sep 7, 2012
Insects Under the Electron Microscope
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Filesize: 75.13kB
Date: Sep 7, 2012
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Filesize: 1.36MB
Date: Sep 9, 2012
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Filesize: 59.63kB
Date: Sep 12, 2012
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Filesize: 18.22kB
Date: Sep 12, 2012
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Filesize: 21.52kB
Date: Sep 12, 2012
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Filesize: 23.77kB
Date: Sep 18, 2012
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Filesize: 1.26MB
Date: Sep 18, 2012
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Filesize: 151.4kB
Date: Sep 18, 2012
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Filesize: 140.19kB
Date: Sep 18, 2012
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Filesize: 182.18kB
Date: Sep 18, 2012
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Filesize: 204.88kB
Date: Sep 18, 2012
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Date: Sep 24, 2012
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Filesize: 72.44kB
Date: Sep 24, 2012
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Filesize: 43.57kB
Date: Sep 24, 2012
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Filesize: 144.44kB
Date: Sep 30, 2012
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Filesize: 161.48kB
Date: Oct 4, 2012
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Date: Oct 4, 2012
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Date: Oct 4, 2012
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Date: Oct 4, 2012
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Date: Oct 7, 2012
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Date: Oct 18, 2012
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Date: Oct 18, 2012
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Date: Oct 19, 2012
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Date: Oct 19, 2012
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Date: Mar 4, 2014
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Date: Sep 29, 2015
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Date: Feb 17, 2018
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Date: Nov 7, 2012
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Date: Feb 20, 2018
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Date: Dec 29, 2012
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Date: Dec 29, 2012
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Date: Dec 29, 2012
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Date: Jan 6, 2013
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Date: Jan 8, 2014
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Date: Jan 15, 2013
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Date: Jan 15, 2013
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Date: Aug 7, 2013
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Date: Feb 14, 2013
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Date: Aug 7, 2013
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Date: Aug 7, 2013
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Date: Jan 31, 2013
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Date: Feb 1, 2013
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Date: Feb 10, 2013
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Date: Feb 18, 2013
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Date: Mar 17, 2013
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Date: Mar 27, 2013
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Date: Mar 31, 2013
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Date: Mar 31, 2013
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Date: Mar 31, 2013
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Date: Mar 31, 2013
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Date: Mar 31, 2013
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Date: Apr 1, 2013
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Date: Apr 1, 2013
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Date: Apr 1, 2013
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Date: Apr 1, 2013
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Date: Apr 1, 2013
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Date: Apr 1, 2013
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Date: Apr 1, 2013
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Date: Apr 1, 2013
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Date: Apr 4, 2013
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Date: Apr 4, 2013
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Date: Apr 4, 2013
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Date: Apr 4, 2013
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Date: Apr 4, 2013
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Date: Apr 4, 2013
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Date: Apr 4, 2013
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Date: Apr 4, 2013
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Date: Apr 4, 2013
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Date: Apr 4, 2013
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Date: Apr 4, 2013
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Date: Apr 4, 2013
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Date: Apr 4, 2013
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Date: Apr 5, 2013
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Filesize: 11.04kB
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