In the answer for inheritance of X-linked genes, Madhav had shown carrier male. His answer was marked incorrect. Madhav was wondering why his marks were cut. Explain the reason.

Males, with a single X and a Y chromosome, cannot be carriers for X-linked recessive disorders, as they lack another X chromosome to mask the expression of such genes. In females, having two X chromosomes allows them to be carriers without displaying physical traits, as one X can compensate for the recessive gene on the other. Madhav’s answer may be incorrect due to a misunderstanding of this concept.

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