mmartinez29 mmartinez29

30-11-2016
Biology

Answered

Which type of chromosomal mutation causes this form of Down syndrome?

Verified Answer :

Nabrialashay Nabrialashay

30-11-2016

Nondisjunction

It is in an embryo with three copies of chromosome 21 instead of the usual two. So if the pairs of 21st chromosomes in either the sperm or the egg then it fails to separate to form an egg.

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