A: Holandric traits are passed from one gener | vedclass

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(A) Holandric traits are controlled by genes present on the non-homologous region of the $Y$ chromosome.Since these genes are located on the $Y$ chrom

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Assertion and Reason both are correct and Reason is the correct explanation of Assertion.

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(A) Holandric traits are controlled by genes present on the non-homologous region of the $Y$ chromosome.Since these genes are located on the $Y$ chromosome,they are passed directly from father to son.Because they are $Y$-linked,they appear exclusively in males and are not found in females,which satisfies the condition of appearing more frequently in one sex than the other.Therefore,both the Assertion and the Reason are correct,and the Reason correctly explains why these traits are sex-specific.

$A$: Holandric traits are passed from one generation to the next generation.
$R$: These traits appear more frequently in one sex than in other.

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$A$: Holandric traits are passed from one generation to the next generation.$R$: These traits appear more frequently in one sex than in other.