There is an autosomal gene that controls baldness, and
its expression is sex-influenced, so that the gene for
baldness (B) is dominant in males but recessive in
females. In females the allele B1 for nonbaldness is
dominant over the gene for baldness. If a heterozygous
nonbald woman marries a nonbald man, what will be
the appearance of their children? Work out the
possibilities for each sex. What will be an ideal response?
Answer: BB1 x B1B1 –––> BB1 + B1B1; all daughters nonbald,
1/2 sons bald, 1/2 sons nonbald
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A. highly polar. B. negatively charged. C. non-polar. D. positively charged. E. water soluble.
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What will be an ideal response?
Which of the following contribute to evolutionary change over time?
a. changes in RNA b. changes in DNA c. changes in proteins d. changes in cells