In cells of human individuals with three or more X chromosomes

a. one X chromosome remains active and the rest are inactivated.
b. all of the X chromosomes remain active.
c. two X chromosomes remain active, and any more are inactivated.
d. two X chromosomes remain active in females and one remains active in males; the rest are
inactivated.
e. only one X chromosome is inactivated.


A

Biology & Microbiology

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