What is one reason why women with the genotype XXX are not phenotypically different from an XX female?
A. Because only one X is active in each cell,
regardless of how many X chromosomes
there are in a cell.
B. Because the X chromosome only carries
genes dealing with being a female, so having
another one doesn't matter.
C. Because the extra X chromosome only
becomes active in nonreproductive areas of
the body.
D. Because we have enzymes that will
recognize and degrade the extra X
chromosome.
E. None of the answer options is correct.
A
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