NEET Biology question

Recessive characters are expressed

(A)On any autosome
(B)On both the chromosomes of female
(C)When they are present on X-chromosomes of maleCorrect
(D)When they are present on X-chromosomes of female

Answer: (C)

Solution

A male has only a single X-chromosome (hemizygous), so any recessive allele present on his X-chromosome is expressed in the phenotype without needing a second recessive copy, matching option (c); in females, a recessive

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Question ID VK-119420