Biology, 22.02.2021 05:50 aderahd7352

Tortoiseshell cats have an extra sex chromosome which causes their mottled fur colors; the different colors are a result of different X chromosomes being activated in random cells. This is called: a. x-inactivation

b. x-expression

c. x-activation (not this, I know because I submitted and it's not this)

d. y-inactivation

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