A member asked:

If a man first two children be normal and his third child have sicklecell trait do that mean he was a carrier anyway?

A doctor has provided 1 answer

Yes, given that ...: Assuming that the mother is the same for all three children and that she does not have sickle cell disease or trait, the scenario you describe means he has sickle cell trait. He has a 50% chance for any given child of passing on sickle cell trait on to them.

Answered 1/28/2017

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