A human being suffering from Down's Synd...

A human being suffering from Down's Syndrome shows trisomy of 21st chromosome. Mention the cause of this chromosomal abnormality.

A

Anaphase I in maternal meiosis

B

Anaphase I in paternal meiosis

C

Anaphase II in maternal meiosis

D

Anaphase II in paternal meiosis

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The correct Answer is:

C

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