Biology, asked by uikeydiksha913, 2 months ago

downs syndrome mongolism is due to

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Answered by mohammadshaikshavali

0

Answer:

iam not anderstand the

Answered by prince2395

1

Answer:

Trisomy 21 ,the person has three copies of chromosome 21

Caused by abnormal cell division during the development of the sperm cell or the egg cell

Explanation:

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