Question

Down's syndrome in human is due to.

Answer 1

Explanation:

People who inherit an unbalanced translocation involving chromosome 21 may have extra genetic material from chromosome 21, which causes Down syndrome. Like trisomy 21, mosaic Down syndrome is not inherited. It occurs as a random event during cell division early in fetal development.

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Answer 2

Explanation:

People who inherit an unbalanced translocation involving chromosome 21 may have extra genetic material from chromosome 21, which causes Down syndrome. Like trisomy 21, mosaic Down syndrome is not inherited. It occurs as a random event during cell division early in fetal development.