Mental retardation in humans,associated with | vedclass

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Question

(B) Mental retardation associated with sex chromosomal abnormalities is most commonly observed in conditions like Klinefelter syndrome $(47, XXY)$ or

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Increase in $X$ complement

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(B) Mental retardation associated with sex chromosomal abnormalities is most commonly observed in conditions like Klinefelter syndrome $(47, XXY)$ or Triple $X$ syndrome $(47, XXX)$.In these conditions,there is an increase in the number of $X$ chromosomes (aneuploidy).Specifically,the presence of extra $X$ chromosomes interferes with normal development,often leading to cognitive impairment or mental retardation.Therefore,an increase in the $X$ complement is the primary cause associated with these chromosomal disorders.

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

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