試題詳解

10. 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 chromosome
(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