Gene A occurs on chromosome 5, gene B is on chromosome 21. Therefore, these two parts of the
chromosomes CANNOT be
a. genes.
b. dominant.
c. loci.
d. alleles.
e. recessive.
D
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Which one of the following represents an actual Watson-Crick base pair with the largest number of hydrogen bonds?
A. adenine and cytosine B. cytosine and guanine C. thymine and guanine D. cytosine and thymine E. adenine and thymine
Sexuality is
A. the sexual anatomy of an individual. B. the sex drive and related behaviors of an individual. C. often different in different cultures. D. All of the above are correct.
Which of the following is a function of the nucleolus?
A) to act as the site of DNA synthesis B) to allow mRNA to leave the nucleus C) to synthesize messenger RNA D) to attach polysaccharides to protein molecules E) to synthesize ribosomal RNA
Why is it important for the cells of multicellular organisms to undergo mitosis?
A. Mitosis allows for reproduction with male and female gametes. B. Mitosis increases variation within an organism. C. Mitosis produces cells that are different from the original dividing cell. D. Mitosis produces identical cells to the original dividing cell.