Which one of them is odd with respect to human male?

Options

Aabsence of one X -chromosome
Baddition of one $X$ -chromosome
Cpresence of XY -chromosome
Dabsence of Barr body

Correct answer

A. absence of one X -chromosome

Step-by-step solution

Option (a) is incorrect/odd with respect to human male because the male karyotype has

44+\mathrm{XY}

chromosomes. This means single X -chromosome is present with one Y-chromosomes. Barr body is an additional X-chromosome found in female somatic cells.

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