Question

For down syndrome, at which stages of meiosis 1 and 2 could a mistake occur that could result in the altered chromosome number?

Answer 1

21 chromosome number mistake

Answer 2

Hii mate!!

Here's your answer

Down syndrome is caused by nondisjunction which cause individual to have 47 chromosomes.This occurs at anaphase stage since at this stage chromosome pair along equator split.

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