Mental retardation in man, associated wi...

Mental retardation in man, associated with sex chromosomal abnormality is usually due to

A

Reduction in X complement

B

Increase in X complement

C

Moderate increase in Y complement

D

Large increase in Y complement

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The correct Answer is:

B

Mental retardation in man during klinefelter syndrome having one extra X chromosome having genotype XXY.

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