The diploid number for a human cell is 46; the chromatid number for a somatic cell at the beginning of G2 would therefore be _____.
A) 4
B) 23
C) 69
D) 92
E) different, depending on the cell type
Answer: D) 92
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extreme barophile
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Organisms containing DNA from an outside source are called
A. hybrid organisms. B. compound organisms. C. transgenic organisms. D. transcribed organisms. E. plasmid organisms.
These two molecules are structural isomers. What is the difference between them?
 A) the number of carbon atoms B) the number of hydrogen atoms C) the location of a double-bonded oxygen atom D) Only one of them has a double bond between carbon atoms.
Movement of a chromosomal segment from one chromosome to another nonhomologous chromosome, leading to abnormalities—e.g., Down syndrome.
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