Question

name the chromosomal abnormality arising due to trisomy of 21st chromosome ​

Answer 1

Answer:

Trisomy 21, commonly referred to as Down syndrome, is caused by an additional copy of the 21st chromosome that typically results from a nondisjunction event during gametogenesis.

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Answer 2

Explanation:

Trisomy 21, commonly referred to as Down syndrome, is caused by an additional copy of the 21st chromosome that typically results from a nondisjunction event during gametogenesis.