Picture Gallery

Search For: 

Search Results

The internal female reproductive organs
Views: 11858
Filesize: 356.41kB
Date: May 5, 2011
 Lateral view of the internal male reproductive organs.
Views: 11103
Filesize: 232.68kB
Date: May 5, 2011
 Spinnbarkeit is the ability of cervical mucus to stretch a distance before breaking.
Views: 3975
Filesize: 151.44kB
Date: May 5, 2011
 CycleBeads help women use the Standard Days Method.
Views: 1665
Filesize: 275.81kB
Date: May 5, 2011
Pelvic inflammatory disease. Chlamydia or gonorrhea spreads up the vagina into the uterus and then t
Views: 1533
Filesize: 155.71kB
Date: May 5, 2011
 The formation of gametes by the process of meiosis is known as gametogenesis.
Views: 10357
Filesize: 187.35kB
Date: May 5, 2011
 Nucleoids within the bacterium Bacillus subtilis.
Views: 1218
Filesize: 91.44kB
Date: Jun 7, 2011
 The organization of nucleotide sequences in bacterial chromosomal DNA.
Views: 1304
Filesize: 87.24kB
Date: Jun 7, 2011
The compaction of a bacterial chromosome.
Views: 6907
Filesize: 35.47kB
Date: Jun 7, 2011
 A U-tube apparatus like the one used by Bernard Davis.
Views: 5959
Filesize: 36.96kB
Date: Jun 7, 2011
 The steps of bacterial transformation.
Views: 25811
Filesize: 131.78kB
Date: Jun 7, 2011
 The major classes of vertebrates
Views: 1545
Filesize: 67.81kB
Date: Jun 7, 2011
The evolution of the vertebrate jaw
Views: 6977
Filesize: 121.07kB
Date: Jun 7, 2011
 The diversity of ray-finned fishes
Views: 1250
Filesize: 53.45kB
Date: Jun 7, 2011
 A lobe-finned fish, the coelacanth (Latimeria chalumnae)
Views: 1210
Filesize: 62.96kB
Date: Jun 7, 2011
 The lepidosaur kinetic skull
Views: 3680
Filesize: 106.27kB
Date: Jun 9, 2011
Development of epithelial appendages
Views: 3373
Filesize: 66.51kB
Date: Jun 9, 2011
 Features of the bird wing and feather
Views: 1574
Filesize: 54.37kB
Date: Jun 9, 2011
 Evolutionary tree for the primates
Views: 9496
Filesize: 98.27kB
Date: Jun 9, 2011
 The levels of biological organization
Views: 12401
Filesize: 131.07kB
Date: Jun 10, 2011
An example of vertical evolution: the horse
Views: 6251
Filesize: 62.15kB
Date: Jun 10, 2011
 The web of life
Views: 1349
Filesize: 62.66kB
Date: Jun 10, 2011
 The three domains of life
Views: 5796
Filesize: 161.71kB
Date: Jun 10, 2011
 Taxonomic and evolutionary groupings leading to the jaguar
Views: 1840
Filesize: 78.7kB
Date: Jun 10, 2011
How the study of genomes and proteomes can provide us with connections to different biological level
Views: 1661
Filesize: 91.62kB
Date: Jun 10, 2011
 The steps of the scientific method, also known as hypothesis testing
Views: 1417
Filesize: 76.48kB
Date: Jun 10, 2011
 A hypothesis that suggests an explanation of the function of the gene that is defective in patients
Views: 1480
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: 4702
Filesize: 120.52kB
Date: Jun 10, 2011
Diagrams showing the multiple energy shells and orbitals of a nitrogen atom
Views: 1611
Filesize: 109.13kB
Date: Jun 13, 2011
 A portion of the periodic table of elements
Views: 1296
Filesize: 65.9kB
Date: Jun 13, 2011
 The formation of covalent bonds
Views: 1395
Filesize: 52.66kB
Date: Jun 13, 2011
 The most abundant elements found in living organisms
Views: 1494
Filesize: 31.06kB
Date: Jun 13, 2011
The formation of micelles by amphipathic molecules
Views: 3913
Filesize: 135.06kB
Date: Jun 13, 2011
 The pH scale and the relative acidities of common substances
Views: 4596
Filesize: 96.39kB
Date: Jun 13, 2011
 Models for the electron orbitals and energy shells of carbon
Views: 1471
Filesize: 77.71kB
Date: Jun 13, 2011
 The stability of carbon bonds makes life possible even in extreme environments
Views: 1771
Filesize: 187.78kB
Date: Jun 13, 2011
The formation of a fat
Views: 1139
Filesize: 36.31kB
Date: Jun 13, 2011
 The 20 amino acids found in living organisms
Views: 2822
Filesize: 87.55kB
Date: Jun 13, 2011
 The chemistry of polypeptide formation
Views: 5301
Filesize: 63.01kB
Date: Jun 13, 2011
 The hierarchy of forces governing protein structure.
Views: 4473
Filesize: 85.06kB
Date: Jun 13, 2011
The primary structure of ribonuclease
Views: 4903
Filesize: 111.47kB
Date: Jun 13, 2011
 The factors that influence protein folding and stability.
Views: 4213
Filesize: 73.92kB
Date: Jun 13, 2011
 Anfinsen's experiments with ribonuclease demonstrating that the primary structure of a polypept
Views: 4465
Filesize: 147.21kB
Date: Jun 13, 2011
 The domain structure of a STAT protein
Views: 1406
Filesize: 46.07kB
Date: Jun 13, 2011
Spatial versus Temporal Photosynthesis
Views: 1626
Filesize: 434.58kB
Date: Jun 13, 2011
 The double-stranded structure of DNA
Views: 1251
Filesize: 94.69kB
Date: Jun 14, 2011
 A comparison of the sizes of various chemical and biological structures, and the resolving power of
Views: 5417
Filesize: 50.51kB
Date: Jun 14, 2011
 The nucleus and endomembrane system
Views: 3539
Filesize: 46.55kB
Date: Jun 14, 2011
The nucleus and nuclear envelope
Views: 2829
Filesize: 82.54kB
Date: Jun 14, 2011
 Chromosome territories in the cell nucleus
Views: 2741
Filesize: 33.3kB
Date: Jun 14, 2011
 Structure of the endoplasmic reticulum
Views: 1586
Filesize: 107.65kB
Date: Jun 14, 2011
 The Golgi apparatus and secretory pathway
Views: 1613
Filesize: 60.29kB
Date: Jun 14, 2011
Motor proteins and their interactions with cytoskeletal filaments.
Views: 3923
Filesize: 88.39kB
Date: Jun 14, 2011
 Cellular movements caused by the actions of flagella and cilia
Views: 1779
Filesize: 28.98kB
Date: Jun 14, 2011
 Amoeboid movement promoted by changes in the locations of actin filaments.
Views: 10446
Filesize: 72.43kB
Date: Jun 14, 2011
 Proteomes and their relationship to cell structure, function, and organization.
Views: 1432
Filesize: 155.63kB
Date: Jun 14, 2011
Information flows from the nucleus to the cytoplasm and back.
Views: 1605
Filesize: 180.61kB
Date: Jun 17, 2011
 The four interacting parts of eukaryotic cells.
Views: 6785
Filesize: 94.03kB
Date: Jun 17, 2011
 The dynamic nature of the endomembrane system
Views: 7478
Filesize: 74.2kB
Date: Jun 17, 2011
 A simplified pathway for the synthesis of membrane phospholipids at the ER membrane
Views: 4261
Filesize: 68.67kB
Date: Jun 17, 2011
Palade's use of the pulse-chase method to study protein secretion
Views: 5976
Filesize: 62.29kB
Date: Jun 17, 2011
 Palade's use of the pulse-chase method to study protein secretion
Views: 4790
Filesize: 67.93kB
Date: Jun 17, 2011
 Second step in cotranslational protein localization: vesicle transport from the endoplasmic reticulu
Views: 8535
Filesize: 60.62kB
Date: Jun 17, 2011
 Insertion of membrane proteins into the ER membrane
Views: 4498
Filesize: 126.25kB
Date: Jun 17, 2011
N-linked glycosylation in the endoplasmic reticulum
Views: 1690
Filesize: 128.12kB
Date: Jun 17, 2011
 Post-translational sorting of a protein to the mitochondrial matrix
Views: 7097
Filesize: 59.86kB
Date: Jun 17, 2011
 Protein degradation via the proteasome
Views: 1266
Filesize: 43.72kB
Date: Jun 17, 2011
 Protein degradation via the proteasome
Views: 1191
Filesize: 129.79kB
Date: Jun 17, 2011
The endosymbiosis theory
Views: 6384
Filesize: 148.86kB
Date: Jun 17, 2011
 Animal cells and the extracellular matrix (ECM)
Views: 2756
Filesize: 215.52kB
Date: Jun 17, 2011
 Synthesis and assembly of collagen
Views: 1546
Filesize: 156.43kB
Date: Jun 17, 2011
 Elastic fibres are made of elastin, one type of structural protein found in the ECM of animal cells
Views: 8575
Filesize: 66.68kB
Date: Jun 17, 2011
Structure of the plant ECM
Views: 4428
Filesize: 59.19kB
Date: Jun 17, 2011
 Structure of cellulose, the main macromolecule of the primary cell wall
Views: 2198
Filesize: 115.88kB
Date: Jun 17, 2011
 An electron micrograph from an experiment demonstrating the function of a tight junction
Views: 1257
Filesize: 93.55kB
Date: Jun 17, 2011
 Use of fluorescent molecules by Lowenstein and colleagues to determine the size of gap-junction chan
Views: 1438
Filesize: 169.89kB
Date: Jun 17, 2011
Semifluidity of the lipid bilayer.
Views: 3679
Filesize: 51.87kB
Date: Jun 20, 2011
 A method to measure the lateral movement of membrane proteins.
Views: 1778
Filesize: 136.47kB
Date: Jun 20, 2011
 Attachment of transmembrane proteins to the cytoskeleton and extracellular matrix of an animal cell.
Views: 4609
Filesize: 93.69kB
Date: Jun 20, 2011
 A micrograph of the cell coat or glycocalyx of an animal cell.
Views: 10121
Filesize: 74.86kB
Date: Jun 20, 2011
The phenomenon of osmosis.
Views: 7123
Filesize: 67.49kB
Date: Jun 20, 2011
 The contractile vacuole in Paramecium caudatum.
Views: 14015
Filesize: 92.73kB
Date: Jun 20, 2011
 The discovery of aquaporins, water channels made of a transmembrane protein.
Views: 1496
Filesize: 105.28kB
Date: Jun 20, 2011
 Types of transporters based on the direction of transport.
Views: 1363
Filesize: 134.24kB
Date: Jun 20, 2011
Structure and function of the Na+/K+ pump.
Views: 1446
Filesize: 68.37kB
Date: Jun 20, 2011
 The steps of an enzyme-catalyzed reaction
Views: 1550
Filesize: 42.17kB
Date: Jun 20, 2011
 The ATP cycle
Views: 13299
Filesize: 62.96kB
Date: Jun 20, 2011
 Breakdown of pyruvate and the attachment of an acetyl group to CoA
Views: 4314
Filesize: 96.4kB
Date: Jun 20, 2011
Overview of the citric acid cycle
Views: 1275
Filesize: 53.38kB
Date: Jun 20, 2011
 A detailed look at the steps of the citric acid cycle
Views: 6032
Filesize: 95.66kB
Date: Jun 20, 2011
 The relationship between free energy and electron movement along the electron transport chain
Views: 4771
Filesize: 70.51kB
Date: Jun 20, 2011
 The Racker and Stoeckenius experiment showing that an H+ electrochemical gradient drives ATP synthes
Views: 8574
Filesize: 85.09kB
Date: Jun 20, 2011
The subunit structure and function of the ATP synthase
Views: 1365
Filesize: 99.85kB
Date: Jun 20, 2011
 Evidence that the ATP synthase is a rotary machine
Views: 1367
Filesize: 137.15kB
Date: Jun 20, 2011
 Energy cycle of the biosphere
Views: 8221
Filesize: 36.17kB
Date: Jun 21, 2011
 An overview of the two stages of photosynthesis: light reactions and the Calvin cycle
Views: 6365
Filesize: 140.96kB
Date: Jun 21, 2011
The electromagnetic spectrum
Views: 3588
Filesize: 60.42kB
Date: Jun 21, 2011
 The absorption of light energy by pigment molecules in the light-harvesting complex, and the path th
Views: 1545
Filesize: 164.52kB
Date: Jun 21, 2011
 A closer look at the structure and function of photosystem II
Views: 1679
Filesize: 104.57kB
Date: Jun 21, 2011
 The synthesis of O2, ATP, and NADPH by the concerted actions of photosystems II and I
Views: 3176
Filesize: 124.87kB
Date: Jun 21, 2011
The enhancement effect observed by Emerson.
Views: 4718
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: 8164
Filesize: 42.15kB
Date: Jun 21, 2011
 Homologous proteins in the electron transport chains of mitochondria and chloroplasts
Views: 1434
Filesize: 201.76kB
Date: Jun 21, 2011
 The Calvin cycle
Views: 1548
Filesize: 84.47kB
Date: Jun 21, 2011
The determination of the Calvin cycle by using labelling of CO2 with 14C
Views: 2197
Filesize: 115.07kB
Date: Jun 21, 2011
 The Calvin Cycle Was Determined by Isotope Labelling Methods
Views: 2510
Filesize: 47.45kB
Date: Jun 21, 2011
 Leaf structure and its relationship to the C4 cycle
Views: 6387
Filesize: 82.39kB
Date: Jun 21, 2011
 Examples of cell-to-cell communication based on the distance between cells
Views: 1912
Filesize: 91.97kB
Date: Jun 21, 2011
The three stages of cell signalling: receptor activation, signal transduction, and a cellular respon
Views: 2121
Filesize: 66.5kB
Date: Jun 21, 2011
 The activation of G-protein-coupled receptors and G proteins
Views: 1447
Filesize: 75.94kB
Date: Jun 21, 2011
 The function of a ligand-gated ion channel
Views: 1481
Filesize: 75.48kB
Date: Jun 21, 2011
 The epidermal growth factor (EGF) pathway that promotes cell division
Views: 5106
Filesize: 93.39kB
Date: Jun 21, 2011
The synthesis and breakdown of cyclic AMP
Views: 1222
Filesize: 23.38kB
Date: Jun 21, 2011
 The cellular response of skeletal muscle cells to epinephrine
Views: 2191
Filesize: 108.96kB
Date: Jun 21, 2011
 The rapid speed of cAMP production
Views: 1458
Filesize: 37kB
Date: Jun 21, 2011
 The effects of epinephrine in humans
Views: 1297
Filesize: 127.18kB
Date: Jun 21, 2011
Discovery of apoptosis in the adrenal cortex by Kerr, Wyllie, and Currie
Views: 1785
Filesize: 129.99kB
Date: Jun 21, 2011
 The extrinsic pathway for apoptosis in mammals
Views: 3785
Filesize: 118.58kB
Date: Jun 21, 2011
 Griffith's experiments that showed the transformation of bacteria by a “transfor
Views: 7659
Filesize: 132.29kB
Date: Jun 23, 2011
 The Avery, MacLeod, and McCarty experiments that identified DNA as Griffith's transformation pr
Views: 8001
Filesize: 122.12kB
Date: Jun 23, 2011
The structure of T2 bacteriophage
Views: 12241
Filesize: 88.98kB
Date: Jun 23, 2011
 Hershey and Chase experiment showing that the genetic material of T2 phage is DNA
Views: 3614
Filesize: 92.02kB
Date: Jun 23, 2011
 Nucleotides and their components
Views: 1815
Filesize: 101.21kB
Date: Jun 23, 2011
 The structure of a DNA strand
Views: 1239
Filesize: 85.75kB
Date: Jun 23, 2011
Watson and Crick and their model of the DNA double helix
Views: 6076
Filesize: 71.89kB
Date: Jun 23, 2011
 Structure of the DNA double helix
Views: 1321
Filesize: 96.42kB
Date: Jun 23, 2011
 A space-filling model of the DNA double helix
Views: 4177
Filesize: 62.2kB
Date: Jun 23, 2011
 The Meselson and Stahl experiment showing that DNA replication is semiconservative
Views: 2641
Filesize: 162.25kB
Date: Jun 23, 2011
DNA replication according to the AT/GC rule
Views: 1365
Filesize: 188.7kB
Date: Jun 23, 2011
 Origins of replication in the chromosomes of different organisms
Views: 1444
Filesize: 72.77kB
Date: Jun 23, 2011
 Nucleotides and their components
Views: 1295
Filesize: 101.21kB
Date: Jun 23, 2011
 Proteins that facilitate the formation and movement of a replication fork
Views: 1405
Filesize: 84.38kB
Date: Jun 23, 2011
Enzymatic synthesis of DNA
Views: 1295
Filesize: 83.62kB
Date: Jun 23, 2011
 Synthesis of the leading and lagging strands
Views: 1388
Filesize: 264.27kB
Date: Jun 23, 2011
 Telomere sequences at the end of a human chromosome
Views: 4710
Filesize: 42.24kB
Date: Jun 23, 2011
 Enzymatic features of DNA polymerase that account for its inability to copy one of the DNA strands a
Views: 1502
Filesize: 71.63kB
Date: Jun 23, 2011
The metabolic pathway that breaks down phenylalanine and its relationship to certain genetic disease
Views: 6028
Filesize: 121.17kB
Date: Jun 23, 2011
 The central dogma of genetics at the molecular level.
Views: 8131
Filesize: 62.15kB
Date: Jun 23, 2011
 The transcription of three different genes that are found in the same chromosome.
Views: 1646
Filesize: 52.42kB
Date: Jun 23, 2011
 Leder's experiment showing the binding of mRNA to DNA that contains an intron
Views: 2140
Filesize: 88.09kB
Date: Jun 23, 2011
The splicing of a eukaryotic pre-mRNA by a spliceosome
Views: 4520
Filesize: 163.28kB
Date: Jun 23, 2011
 Modifications that occur at the ends of mRNA in eukaryotic cells.
Views: 1254
Filesize: 53.93kB
Date: Jun 23, 2011
 The Genetic Code
Views: 1448
Filesize: 34.78kB
Date: Jun 23, 2011
 The organization of mRNA as a translational unit
Views: 1261
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: 2396
Filesize: 80.98kB
Date: Jun 24, 2011
 Nirenberg and Leder's use of triplet binding assays to decipher the genetic code
Views: 9646
Filesize: 111.63kB
Date: Jun 24, 2011
 Aminoacyl-tRNA synthetase charging a tRNA
Views: 8873
Filesize: 61.46kB
Date: Jun 24, 2011
 An overview of the stages of translation
Views: 1536
Filesize: 64.26kB
Date: Jun 24, 2011
The directionality of a polypeptide compared to an mRNA
Views: 1382
Filesize: 66.24kB
Date: Jun 24, 2011
 The lac operon
Views: 4850
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: 1729
Filesize: 100.89kB
Date: Jun 24, 2011
 Jacob, Monod, and Pardee's hypothesis for the function of the lacI region
Views: 2443
Filesize: 47kB
Date: Jun 24, 2011
The experiment performed by Jacob, Monod, and Pardee to study a lacI constitutive mutant
Views: 6675
Filesize: 116.04kB
Date: Jun 24, 2011
 Positive regulation of the lac operon by the catabolite activator protein (CAP)
Views: 1509
Filesize: 113.33kB
Date: Jun 24, 2011
 Effects of lactose and glucose on the expression of the lac operon
Views: 4021
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: 1575
Filesize: 48.87kB
Date: Jun 24, 2011
A common organization of sequences for the promoter of a eukaryotic structural gene
Views: 3824
Filesize: 48.13kB
Date: Jun 24, 2011
 The preinitiation complex
Views: 3577
Filesize: 28.88kB
Date: Jun 24, 2011
 Action of the glucocorticoid receptor as a transcriptional activator
Views: 1351
Filesize: 84.45kB
Date: Jun 24, 2011
 Translational regulation of ferritin mRNA by the iron regulatory protein (IRP)
Views: 5929
Filesize: 110.34kB
Date: Jun 24, 2011
The effects of germ-line versus somatic cell mutations.
Views: 10633
Filesize: 89.64kB
Date: Jun 25, 2011
 The Ames test for mutagenicity.
Views: 2370
Filesize: 51.86kB
Date: Jun 25, 2011
 The eukaryotic cell cycle
Views: 15814
Filesize: 94.1kB
Date: Jun 25, 2011
 Checkpoints in the cell cycle.
Views: 1241
Filesize: 48.48kB
Date: Jun 25, 2011
The experimental approach used by Masui and Markert to identify cyclin and cyclin-dependent kinase (
Views: 2560
Filesize: 151.21kB
Date: Jun 25, 2011
 The progression and effects of cancer.
Views: 1244
Filesize: 72.34kB
Date: Jun 25, 2011
 A missense mutation that converts the normal ras gene into an oncogene.
Views: 1603
Filesize: 52.48kB
Date: Jun 25, 2011
 The formation of a chimeric gene that is found in people with certain forms of leukemia.
Views: 1373
Filesize: 59.94kB
Date: Jun 25, 2011
The cell cycle and checkpoints
Views: 2725
Filesize: 44.99kB
Date: Jun 25, 2011
 Function of the Rb protein
Views: 1424
Filesize: 87.26kB
Date: Jun 25, 2011
 A comparison between chromosomes found in a normal human cell and a cancer cell from the same person
Views: 1880
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: 5012
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: 3146
Filesize: 30.91kB
Date: Jun 25, 2011
 Structure of the nuclear matrix and its attachment to the 30-nm fibre
Views: 12703
Filesize: 60.2kB
Date: Jun 25, 2011
 A molecular model showing chromosome territories in the cell nucleus of humans
Views: 1653
Filesize: 38.17kB
Date: Jun 25, 2011
 A molecular model showing chromosome territories in the cell nucleus of humans
Views: 3659
Filesize: 75.88kB
Date: Jun 25, 2011
The steps in eukaryotic chromosomal compaction leading to the metaphase chromosome
Views: 8790
Filesize: 118.8kB
Date: Jun 25, 2011
 The importance of histones and scaffolding proteins in the compaction of eukaryotic chromosomes.
Views: 3149
Filesize: 156.91kB
Date: Jun 25, 2011
 Examples of covalent modifications that occur to the amino terminal tails of histone proteins. The a
Views: 1690
Filesize: 72.22kB
Date: Jun 25, 2011
 The procedure for making a karyotype.
Views: 9375
Filesize: 83.52kB
Date: Jun 25, 2011
The eukaryotic cell cycle and cell division in an organism with six chromosomes.
Views: 5267
Filesize: 81.85kB
Date: Jun 25, 2011
 Structure of the mitotic spindle.
Views: 6723
Filesize: 61.87kB
Date: Jun 25, 2011
 The process of mitosis in an animal cell.
Views: 4292
Filesize: 85.96kB
Date: Jun 25, 2011
 The process of mitosis in an animal cell.
Views: 1570
Filesize: 88.02kB
Date: Jun 25, 2011
Nondisjunction during the formation of haploid cells.
Views: 2018
Filesize: 80.79kB
Date: Jun 25, 2011
 Polyploidy has been an important factor in the evolution of plants.
Views: 6773
Filesize: 55.94kB
Date: Jun 25, 2011
 Gregor Johann Mendel, the father of genetics
Views: 1459
Filesize: 34.26kB
Date: Jun 27, 2011
 The seven traits that Mendel studied.
Views: 1959
Filesize: 103.99kB
Date: Jun 27, 2011
How the law of segregation of alleles explains Mendel's observed ratios
Views: 4339
Filesize: 91.84kB
Date: Jun 27, 2011
 Two hypotheses for the assortment of two different genes
Views: 1313
Filesize: 148.67kB
Date: Jun 27, 2011
 The chromosomal basis of allele segregation.
Views: 9337
Filesize: 106.5kB
Date: Jun 27, 2011
 The chromosomal basis of independent assortment.
Views: 8962
Filesize: 72.52kB
Date: Jun 27, 2011
The norm of reaction
Views: 4885
Filesize: 55.12kB
Date: Jun 27, 2011
 Environmental influences on the expression of PKU within a single family
Views: 1718
Filesize: 86.23kB
Date: Jun 27, 2011
 Epistasis in the sweet pea.
Views: 4479
Filesize: 97.83kB
Date: Jun 27, 2011
 The locations of genetic material in animal and plant cells.
Views: 1774
Filesize: 154.96kB
Date: Jun 27, 2011
Maternal inheritance in the four-o'clock plant.
Views: 6657
Filesize: 123.96kB
Date: Jun 27, 2011
 X chromosome inactivation in female mammals produces the Barr Body.
Views: 6171
Filesize: 31.67kB
Date: Jun 27, 2011
 The process of X inactivation
Views: 5299
Filesize: 49.22kB
Date: Jun 27, 2011
 An example of genomic imprinting in the mouse.
Views: 1330
Filesize: 41.63kB
Date: Jun 27, 2011
The inheritance of snail coiling direction as an example of a maternal effect gene.
Views: 6913
Filesize: 100.1kB
Date: Jun 27, 2011
 The mechanism of maternal effect in snail coiling.
Views: 3434
Filesize: 64.05kB
Date: Jun 27, 2011
 Variations in the structure of viruses.
Views: 1802
Filesize: 169.54kB
Date: Jun 27, 2011
 Comparison of the steps of two viral reproductive cycles.
Views: 2216
Filesize: 108.5kB
Date: Jun 27, 2011
Comparison of the steps of two viral reproductive cycles.
Views: 1426
Filesize: 88.04kB
Date: Jun 27, 2011
 A closer look at the reproductive cycle of human immunodeficiency virus (HIV)
Views: 4892
Filesize: 112.69kB
Date: Jun 27, 2011
 Effects of the tomato apical stunt viroid.
Views: 4225
Filesize: 75.12kB
Date: Jun 27, 2011
 The organization of nucleotide sequences in bacterial chromosomal DNA.
Views: 1442
Filesize: 87.24kB
Date: Jun 27, 2011
A U-tube apparatus like the one used by Bernard Davis.
Views: 6569
Filesize: 36.96kB
Date: Jun 27, 2011
 Developmental stages of the fruit fly Drosophila
Views: 4653
Filesize: 148.71kB
Date: Jun 28, 2011
 The bicoid mutation in Drosophila.
Views: 4269
Filesize: 53.93kB
Date: Jun 28, 2011
 The organization of segments in the Drosophila embryo
Views: 1320
Filesize: 49.83kB
Date: Jun 28, 2011
The bithorax mutation in Drosophila
Views: 3567
Filesize: 58.95kB
Date: Jun 28, 2011
 The Antennapedia mutation in Drosophila
Views: 13735
Filesize: 88.53kB
Date: Jun 28, 2011
 Davis, Weintraub, and Lasser and the promotion of muscle cell differentiation in fibroblasts by the
Views: 1407
Filesize: 121.45kB
Date: Jun 28, 2011
 Step 2 of gene cloning: The actions of a restriction enzyme and DNA ligase to produce a recombinant
Views: 1690
Filesize: 123.42kB
Date: Jun 28, 2011
Step 3 of gene cloning: The cloning of a recombinant vector.
Views: 2477
Filesize: 232.1kB
Date: Jun 28, 2011
 The technique of Southern blotting
Views: 1326
Filesize: 147.67kB
Date: Jun 28, 2011
 DNA sequencing by the dideoxy method
Views: 3632
Filesize: 114.5kB
Date: Jun 28, 2011
 The use of bacteria to make human insulin
Views: 1754
Filesize: 159.84kB
Date: Jun 28, 2011
The production of transgenic crops
Views: 1214
Filesize: 254.47kB
Date: Jun 28, 2011
 Bioinformatics tools at the BAR (Bio-Array Resource).
Views: 1085
Filesize: 159.83kB
Date: Jun 29, 2011
 A fossil of the first known feathered vertebrate, Archaeopteryx, which emerged in the Jurassic perio
Views: 1180
Filesize: 132.75kB
Date: Jun 29, 2011
 Charles Darwin and the voyage
Views: 1498
Filesize: 57.14kB
Date: Jul 12, 2011
Evolutionary change in the tetrapod lineage, showing a transitional form.
Views: 2313
Filesize: 101.85kB
Date: Jul 12, 2011
 Evolutionary changes in the shape of oyster shells.
Views: 3875
Filesize: 66.19kB
Date: Jul 12, 2011
 Evolutionary changes that led to the modern horse.
Views: 2378
Filesize: 125.29kB
Date: Jul 12, 2011
 The evolution of an endemic island species from a mainland species.
Views: 1272
Filesize: 176.25kB
Date: Jul 12, 2011
Crop plants developed by selective breeding of the wild mustard plant.
Views: 8685
Filesize: 67.14kB
Date: Jul 12, 2011
 The Grants' investigation of natural selection in finches.
Views: 1328
Filesize: 90.5kB
Date: Jul 12, 2011
 The Grants and natural selection of beak size among the medium ground finch.
Views: 1518
Filesize: 116.89kB
Date: Jul 12, 2011
 An example of genetic homology: a comparison of a short amino acid sequence within the p53 protein f
Views: 3952
Filesize: 70.42kB
Date: Jul 12, 2011
Formation of additional eyes in Drosophila caused by the abnormal expression of a master control gen
Views: 4221
Filesize: 52.68kB
Date: Jul 14, 2011
 Synthesis of Deoxy-ribo nucleotide from Ribo nucleotide
Views: 2119
Filesize: 89.35kB
Date: Oct 16, 2011
 thylakoid
Views: 7557
Filesize: 23.62kB
Date: Jan 16, 2012
 Organic Synthesis Flow Chart
Views: 6083
Filesize: 110.97kB
Date: Feb 9, 2012
reaction system of photosynthesis
Views: 1116
Filesize: 105.3kB
Date: Apr 3, 2012
 Physiology of the hand
Views: 1426
Filesize: 89.08kB
Date: Jan 22, 2013
 Trachea
Views: 1108
Filesize: 437.23kB
Date: Jul 8, 2012
 Ciliated epithelium
Views: 1159
Filesize: 437.23kB
Date: Jul 8, 2012
Role of CD23 on epithelial cells in the pathogenesis of food allergic disease.
Views: 2409
Filesize: 170.6kB
Date: Sep 4, 2012
 The domain structures of IgE and IgG
Views: 1255
Filesize: 111.34kB
Date: Sep 4, 2012
 The anterior spiracles (respiratory openings) of a fruit fly larvae magnified 1500x.
Views: 1171
Filesize: 81.54kB
Date: Sep 7, 2012
 polllen grain on perched on the anther of a Penta lanceolata flower
Views: 1238
Filesize: 113.9kB
Date: Sep 7, 2012
the fibrous configuration of a dry macrofoam sponge swab
Views: 1565
Filesize: 181.43kB
Date: Sep 7, 2012
 Hydrothermal Worm Viewed Under An Electron Microscope
Views: 2787
Filesize: 45.59kB
Date: Sep 7, 2012
 Insects Under the Electron Microscope
Views: 8707
Filesize: 95.44kB
Date: Sep 7, 2012
 Insects Under the Electron Microscope
Views: 3514
Filesize: 64.89kB
Date: Sep 7, 2012
Insects Under the Electron Microscope
Views: 3132
Filesize: 71.76kB
Date: Sep 7, 2012
 Insects Under the Electron Microscope
Views: 2922
Filesize: 68.99kB
Date: Sep 7, 2012
 Insects Under the Electron Microscope
Views: 6000
Filesize: 82.12kB
Date: Sep 7, 2012
 Insects Under the Electron Microscope
Views: 1329
Filesize: 102.31kB
Date: Sep 7, 2012
Insects Under the Electron Microscope
Views: 3877
Filesize: 77.3kB
Date: Sep 7, 2012
 Insects Under the Electron Microscope
Views: 4625
Filesize: 75.85kB
Date: Sep 7, 2012
 Insects Under the Electron Microscope
Views: 4399
Filesize: 99.58kB
Date: Sep 7, 2012
 Insects Under the Electron Microscope
Views: 1245
Filesize: 75.18kB
Date: Sep 7, 2012
Insects Under the Electron Microscope
Views: 1571
Filesize: 96.89kB
Date: Sep 7, 2012
 Insects Under the Electron Microscope
Views: 1236
Filesize: 75.13kB
Date: Sep 7, 2012
 Featherless Chiken
Views: 2042
Filesize: 298.09kB
Date: Sep 15, 2012
 Hydrothermal Worm
Views: 3919
Filesize: 98.11kB
Date: Sep 18, 2012
stereocilia inside the ear
Views: 885
Filesize: 68.83kB
Date: Sep 24, 2012
 The optic disc
Views: 964
Filesize: 68.34kB
Date: Sep 24, 2012
 The Inner Surface of Human Lung
Views: 1088
Filesize: 80.13kB
Date: Sep 24, 2012
 Villi in the small intestine
Views: 1095
Filesize: 108.25kB
Date: Sep 24, 2012
five days after the fertilisation
Views: 1050
Filesize: 43.57kB
Date: Sep 24, 2012
 Scorpions, Spiders and Sharks: Electron-Microscope Images
Views: 4341
Filesize: 109.94kB
Date: Oct 4, 2012
 Scorpions, Spiders and Sharks: Electron-Microscope Images
Views: 2083
Filesize: 153.54kB
Date: Oct 4, 2012
 Scorpions, Spiders and Sharks: Electron-Microscope Images
Views: 1008
Filesize: 161.48kB
Date: Oct 4, 2012
Scorpions, Spiders and Sharks: Electron-Microscope Images
Views: 903
Filesize: 147.18kB
Date: Oct 4, 2012
 Scorpions, Spiders and Sharks: Electron-Microscope Images
Views: 937
Filesize: 97.04kB
Date: Oct 4, 2012
 Alveoli
Views: 896
Filesize: 378.28kB
Date: Oct 14, 2012
 Sperm in the fallopian tube.
Views: 866
Filesize: 74.67kB
Date: Oct 18, 2012
The egg cell
Views: 820
Filesize: 33.75kB
Date: Oct 18, 2012
 Sperm by the fallopian tube
Views: 754
Filesize: 84.84kB
Date: Oct 18, 2012
 The fallopian tube
Views: 818
Filesize: 31.57kB
Date: Oct 18, 2012
 Two sperms are contacting with the egg cell
Views: 751
Filesize: 89.34kB
Date: Oct 18, 2012
The winning sperm
Views: 936
Filesize: 51.84kB
Date: Oct 18, 2012
 The human embryo
Views: 1042
Filesize: 80.43kB
Date: Oct 18, 2012
 brain development in the human embryo
Views: 1120
Filesize: 52.84kB
Date: Oct 18, 2012
 The human embryo
Views: 969
Filesize: 48.39kB
Date: Oct 19, 2012
Embryonic cells form the placenta
Views: 1053
Filesize: 45.07kB
Date: Oct 19, 2012
 6 months in the uterus
Views: 1012
Filesize: 37.94kB
Date: Oct 19, 2012
 36 weeks in the uterus
Views: 1046
Filesize: 21.41kB
Date: Oct 19, 2012
 brain model
Views: 1376
Filesize: 116kB
Date: Jan 23, 2013
Anatomy of the heart
Views: 2713
Filesize: 186.99kB
Date: Mar 28, 2013
 Adult stem cells offer hope for cell therapy to treat diseases in the future
Views: 1440
Filesize: 43.17kB
Date: Mar 31, 2013
 Potential applications of embryonic and tissue specific adult stem cell in cellular and gene theraph
Views: 1337
Filesize: 401.6kB
Date: Mar 31, 2013
 The Mesengenic Process in stem cells
Views: 2023
Filesize: 307.03kB
Date: Mar 31, 2013
New Research on the Effects of Traumatic Brain Injury (TBI)
Views: 1071
Filesize: 199.22kB
Date: Apr 1, 2013
 Bulging Eyes Of The Tarsier Provide Insight Into Evolution Of Human Vision
Views: 1257
Filesize: 37.52kB
Date: Apr 1, 2013
 The Whipple Bacillus
Views: 821
Filesize: 40.18kB
Date: Apr 1, 2013
 The Whipple Bacillus
Views: 752
Filesize: 44.38kB
Date: Apr 1, 2013
The Whipple Bacillus
Views: 820
Filesize: 38.75kB
Date: Apr 1, 2013
 chem: thermodynamics
Views: 788
Filesize: 487.47kB
Date: Jun 30, 2013
 The relative proportions of body region representation in the motor cortex (anterior to the central
Views: 1203
Filesize: 218.41kB
Date: Aug 7, 2013
 The dance language of bees
Views: 835
Filesize: 242.97kB
Date: Aug 7, 2013
Pathway to the sensorimotor cortex for cutaneous fibers from the forelimb
Views: 945
Filesize: 311.52kB
Date: Aug 7, 2013
 Diagram of the food chain
Views: 855
Filesize: 151.69kB
Date: Aug 7, 2013
 Internal Anatomy of the pigeon
Views: 1088
Filesize: 142.59kB
Date: Aug 7, 2013
 The arrangement of cross bridges between filaments interact
Views: 795
Filesize: 175.78kB
Date: Aug 7, 2013
The autonomic nervous system with its sympathetic and parasympathetic divisions
Views: 931
Filesize: 219.61kB
Date: Aug 7, 2013
 Lateral View of the human brain in cross section
Views: 1832
Filesize: 226.22kB
Date: Aug 7, 2013
 The spinal cord
Views: 1548
Filesize: 140.53kB
Date: Aug 7, 2013
 Joints of the Right Shoulder
Views: 646
Filesize: 297.7kB
Date: Aug 11, 2013
Joints of the right Elbow
Views: 614
Filesize: 231.6kB
Date: Aug 11, 2013
 Right Hand from the Palmar Aspect
Views: 837
Filesize: 276.44kB
Date: Aug 11, 2013
 Joints of the right wrist
Views: 661
Filesize: 270.8kB
Date: Aug 11, 2013
 Right OS COXAE from the Inner side
Views: 656
Filesize: 248.96kB
Date: Aug 11, 2013
Joint of the right hip
Views: 729
Filesize: 212.7kB
Date: Aug 11, 2013
 Phantom of the right Patella
Views: 623
Filesize: 230.48kB
Date: Aug 11, 2013
 Joints of the right knee
Views: 833
Filesize: 304.26kB
Date: Aug 11, 2013
 Right foot from the plantar aspect
Views: 924
Filesize: 251.48kB
Date: Aug 11, 2013
Right foot from the tibia side
Views: 898
Filesize: 280.03kB
Date: Aug 11, 2013
 Joints of the right ankle
Views: 866
Filesize: 268.1kB
Date: Aug 11, 2013
 Muscles of the Throat
Views: 747
Filesize: 345.32kB
Date: Aug 12, 2013
 Muscles of the Torso
Views: 717
Filesize: 423.81kB
Date: Aug 12, 2013
Muscles of the Torso Back
Views: 814
Filesize: 408.81kB
Date: Aug 12, 2013
 Muscles of the Torso Side
Views: 743
Filesize: 316.83kB
Date: Aug 12, 2013
 Muscles of the upper right Extremity
Views: 819
Filesize: 398.68kB
Date: Aug 12, 2013
 Muscles of the right upper extremity upper view
Views: 907
Filesize: 361.03kB
Date: Aug 12, 2013
Muscles of the right upper extremity back view
Views: 1292
Filesize: 415.48kB
Date: Aug 12, 2013
 Muscles of the right upper extremity supine view
Views: 815
Filesize: 348.04kB
Date: Aug 12, 2013
 Muscles of the right axilla armpit
Views: 736
Filesize: 303.27kB
Date: Aug 12, 2013
 Muscles of the right hand
Views: 860
Filesize: 363.15kB
Date: Aug 12, 2013
Muscles of the right hand back view
Views: 918
Filesize: 380.41kB
Date: Aug 12, 2013
 Muscles of the right hand side view
Views: 979
Filesize: 270.2kB
Date: Aug 12, 2013
 Muscles of the right lower extremity
Views: 931
Filesize: 381.51kB
Date: Aug 12, 2013
 Muscles of the Right Lower Extremity
Views: 947
Filesize: 417.02kB
Date: Aug 12, 2013
Right foot from the dorsal aspect
Views: 840
Filesize: 336.74kB
Date: Aug 12, 2013
 Right foot from the plantar aspect
Views: 744
Filesize: 323.01kB
Date: Aug 12, 2013
 Cross section of the right forearm
Views: 1025
Filesize: 338.53kB
Date: Aug 12, 2013
 The Fetal Skull • Frontal b
Views: 670
Filesize: 8.68kB
Date: Dec 18, 2013
Alveolar margin of the Maxilla
Views: 769
Filesize: 5.15kB
Date: Dec 18, 2013
 Mind map of epithelial cell and cellular transportations
Views: 2410
Filesize: 174.43kB
Date: Dec 23, 2013
 Membrane Synthesis, lipid Bilayers, Enzymes function
Views: 1279
Filesize: 47.61kB
Date: Mar 17, 2014
 Pulmonary arterial catheter
Views: 764
Filesize: 528.44kB
Date: Apr 30, 2014
The nucleic acids DNA and RNA are made from chains of nucleotides.
Views: 4006
Filesize: 155.06kB
Date: Sep 8, 2014
 the brain
Views: 583
Filesize: 448.59kB
Date: Oct 14, 2014
 the history of life according to fossil records
Views: 17591
Filesize: 52.57kB
Date: Oct 25, 2014
 likelihood of finding a fossil
Views: 13859
Filesize: 32.83kB
Date: Oct 25, 2014
Brief Review of the History of Oligonucleotide Synthesis
Views: 6566
Filesize: 92.67kB
Date: Dec 29, 2014
 Help With Orbital Mechanic Homework!!
Views: 813
Filesize: 51.18kB
Date: Jan 2, 2015
 Anatomy of the Heart!
Views: 4311
Filesize: 348.91kB
Date: Feb 14, 2015
 Anatomy of the Lungs
Views: 4632
Filesize: 62.79kB
Date: Feb 14, 2015
Which of the following statements is true of linkage?
Views: 6770
Filesize: 24.42kB
Date: Apr 12, 2015
 Photosynthesis in plants
Views: 1663
Filesize: 53.93kB
Date: Oct 1, 2015
 Photosynthesis
Views: 767
Filesize: 24.01kB
Date: Oct 1, 2015
 Root nodule formation in legumes
Views: 8086
Filesize: 790.26kB
Date: Nov 11, 2015
Latest Post Display
Views: 906
Filesize: 532.69kB
Date: Mar 17, 2016
 Photosynthesis!
Views: 811
Filesize: 48.53kB
Date: Apr 4, 2016
 Nursing Vector Icon
Views: 482
Filesize: 8.58kB
Date: Nov 29, 2016
 Four color theorem
Views: 358
Filesize: 43.1kB
Date: Nov 23, 2021
Location of the hypothalamus and pituitary gland
Views: 115
Filesize: 235.47kB
Date: Sep 8, 2023
 Functional Regions of the Human Brain
Views: 142
Filesize: 153.76kB
Date: Sep 14, 2023
 Micrographs and drawings of three types of simple epithelia, with examples of their functions and lo
Views: 305
Filesize: 372.07kB
Date: Sep 16, 2023
 Evidence of early bipedalism
Views: 106
Filesize: 934.59kB
Date: Oct 3, 2023
Archaeopteryx
Views: 115
Filesize: 600.47kB
Date: Oct 4, 2023
 Sinosauropteryx
Views: 97
Filesize: 106.17kB
Date: Oct 4, 2023
 Effects of Continental Drift
Views: 604
Filesize: 319.18kB
Date: Oct 5, 2023
 Links in the Whale Lineage: Elomeryx
Views: 288
Filesize: 224.3kB
Date: Dec 21, 2023
Noncyclic Pathway of Photosynthesis
Views: 270
Filesize: 366.06kB
Date: Jun 4, 2024
 Each enzyme functions best within a characteristic range of pH
Views: 211
Filesize: 133.09kB
Date: Jun 13, 2024
Return to Gallery