A female black cat mated with an albino male and gave birth to 6 black kittens. When the albino male ...

Answer to q. 1

Concepts to Consider: The first female black cat was homozygous dominant for the albinism gene.
The second female black cat was heterozygous. The albino male was homozygous recessive. All the
offspring from the first mating were heterozygous. In the second mating, the black offspring were
heterozygous, while the albinos were all recessive.

Answer to q. 2

Dosage combination equalizes the expression of X-linked genes in males and females. The process of
dosage compensation involves the random inactivation of one of the two X chromosomes in the
female

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