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A member asked:

When a kid has an extra chromosome, does it come from the mother or the father?

2 doctors weighed in across 2 answers

Yes: One parent or the other. An extra Y will be from Dad.

Dr Ferguson agreed

Answered 12/1/2016

3.4k views

Thank

Either: There are some linkage studies that could identify this in more detail on a specific case, but these are rarely done outside a research facility.Statistically it would more likely come from mother.However, it could come from either.

Answered 12/1/2016

866 views

Thank

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