Describe how a zygote with trisomy 21 is likely to occur during fertilization.

Biology

1 answer:

maks197457 [2]1 year ago

5 0

Answer:

If the paired chromosomes fail to separate during meiosis in the female, then the resulting daughter cells will receive either 2 or no copies of chromosome 21. If the resulting egg with 2 copies of chromosome 21 is fertilized with a normal sperm, the resulting zygote with be trisomy 21

Explanation:

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