13. Mendelian Genetics
X-Inactivation
Multiple Choice
Multiple ChoiceA genetic defect in humans results in the absence of sweat glands in the skin. Some men have this defect all over their bodies, but in women it is usually expressed in a peculiar way: A woman with this defect typically has small patches of skin with sweat glands and other patches without sweat glands. In women, the pattern of sweat-gland distribution can best be explained by __________.
A
a mutation
B
linkage
C
recombination
D
nondisjunction
E
X chromosome inactivation
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