How does Down syndrome occur

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asked Mar 19, 2022 143k views

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Cactussss · Answer 1 · 2022-03-22T00:36:55+0000

Answer:

usually caused by an error in cell division called nondisjunction. babies are normally born with 46 chromosomes, but when they have down syndrome they have an extra copy of one of the chromosomes

Step-by-step explanation:

Nirkov · Answer 2 · 2022-03-25T05:00:35+0000

Answer:

Down syndrome can occur when a portion of chromosome 21 becomes attached (translocated) onto another chromosome, before or at conception. These children have the usual two copies of chromosome 21, but they also have additional genetic material from chromosome 21 attached to another chromosome.

How does Down syndrome occur

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