Around 40% of cats with white fur and blue eyes are deaf. the gene responsible is pleiotropic. what does this mean? a) the genes for deafness and pigmentation are allelic to each other and are expressed in equal proportion. b) the gene for pigmentation masks the gene for hearing. c) a single gene is responsible for pigmentation and hearing. give me a !

The correct answer is option C) "A single gene is responsible for pigmentation and hearing".

Explanation:

Gene pleiotropy describes a genetic effect at which a single gene causes multiple phenotypic traits. The mechanism of pleiotropy is that a gene codes for a product that is used in multiple cell mechanisms. In this example 40 % of cats with white fur and blue eyes are deaf and the gene responsible is pleiotropic. This means that a single gene is responsible for pigmentation and hearing and the gene codes for a product that causes these two phenotypic traits on cats.

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