What type of error in meiosis causes Down syndrome

asked Feb 28, 2018 91.5k views

2 votes

by Danvy

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3 votes

Three types of chromosome 21.It can result from the translocation of a large segment of a third chromosome 21 into another chromosome.

Valiante answered Mar 1, 2018

9.8k points

4 votes

when one parent either egg or sperm has a copy of the 23rd chromosome

Bbarnhart answered Mar 6, 2018

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