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Chapter 15

Question:

Males are more often affected by sex-linked traits than females because

A) males are hemizygous for the X chromosome.

B) male hormones such as testosterone often alter the effects of mutations on the X chromosome.

C) female hormones such as estrogen often compensate for the effects of mutations on the X.

D) X chromosomes in males generally have more mutations than X chromosomes in females.

E) mutations on the Y chromosome often worsen the effects of X-linked mutations.



Answer:

A) males are hemizygous for the X chromosome.



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Last update by mayur on 03/27/2014
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Chapter 15
Chapter 15
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Question: Males are more often affected by sex-linked traits than females because A) males are hemizygous for the X chromosome. B) male hormones such as testosterone often alter the effects of mutations on the X chromosome. C) female hormones such as estrogen often compensate for the effects of mutations on the X. D) X chromosomes in males generally have more mutations than X chromosomes in females. E) mutations on the Y chromosome often worsen the effects of X-linked mutations.
Answer: A) males are hemizygous for the X chromosome.