Excessive growth of hair on the pinna is a fe | vedclass

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(B) Genes located in the non-homologous region of the $Y-$chromosome are known as holandric genes.These genes are transmitted directly from father to

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The gene responsible for the character is present on the $Y-$chromosomes only

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(B) Genes located in the non-homologous region of the $Y-$chromosome are known as holandric genes.These genes are transmitted directly from father to son because they are present only on the $Y-$chromosome.Hypertrichosis of the pinna (excessive hair growth on the ear) is a classic example of a holandric trait.Since females lack a $Y-$chromosome,they do not inherit or express these genes.

Excessive growth of hair on the pinna is a feature found only in males because

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