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Genetics

(a) An infant with trisomy 13, showing a cleft lip and palate (the roof of the mouth). (b) The hand
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Date: Feb 4, 2022
 The results of a cytogenetic survey of over 4,000 miscarriages show a wide variation in how often sp
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Filesize: 135.33kB
Date: Feb 4, 2022
 The karyotype of a triploid individual contains three copies of each chromosome.
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Filesize: 118.2kB
Date: Feb 4, 2022
 (a) In nondisjunction in meiosis I, one pair of chromosomes fails to separate properly at anaphase I
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Filesize: 262.15kB
Date: Feb 4, 2022
An infant with triploidy, showing the characteristic enlarged head.
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Filesize: 188.72kB
Date: Feb 4, 2022
 (a) In amniocentesis, a syringe needle is inserted through the walls of the abdomen and uterus to co
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Filesize: 308.24kB
Date: Feb 4, 2022
 The chorionic villus sampling technique. (a) A catheter is inserted into the uterus through the vagi
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Filesize: 189.66kB
Date: Feb 4, 2022
 (a) Chromosome painting with five different-colored markers in a normal cell. (b) Painting produces
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Filesize: 136.95kB
Date: Feb 4, 2022
Chromosomal Aberrations
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Filesize: 179.93kB
Date: Feb 4, 2022
 Four common staining procedures used in chromosomal analysis. Most karyotypes are prepared using G-b
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Filesize: 411.48kB
Date: Feb 4, 2022
 (a) A metaphase array of chromosomes as viewed in the microscope. (b) The computer-derived karyotype
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Filesize: 118.29kB
Date: Feb 4, 2022
 The steps in the process of creating a karyotype for chromosome analysis.
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Filesize: 129.58kB
Date: Feb 4, 2022
The system of naming chromosome bands. Each autosome is numbered from 1 to 22. The sex chromosomes a
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Filesize: 97.06kB
Date: Feb 4, 2022
 A karyogram of the human chromosome set, showing the distinctive banding pattern of each chromosome.
Views: 245
Filesize: 107.16kB
Date: Feb 4, 2022
 Human mitotic metaphase chromosomes are identified by size, centromere location, and banding pattern
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Filesize: 120.12kB
Date: Feb 4, 2022
 Human chromosomes as seen at metaphase of mitosis in the scanning electron microscope. The replicate
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Filesize: 465.62kB
Date: Feb 4, 2022
Number of Chromosomes in Selected Organisms
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Filesize: 153.9kB
Date: Feb 4, 2022
 Opener A human X chromosome highlighted using fluorescence in situ hybridization
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Filesize: 70.3kB
Date: Feb 1, 2022
 DNA Hypermethylation of Number of Known Genes
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Filesize: 79.1kB
Date: Feb 1, 2022
 Predisposing Mutations in BRCA 1
Views: 220
Filesize: 251.31kB
Date: Feb 1, 2022
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