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A member asked:
My cousin is married to her mother's brother's son. now she is worried whether if she onceives , will her baby be having any genetic mutations ?
3 doctors weighed in across 2 answers
Increased risk: We all have genetic mutations. There is an increased risk of a future baby having a problem from a certain class of problems, recessive disorders. You need to inherit two bad copies of a recessive gene to cause a problem. When your parents are closely related, it increases the risk of both parents carrying mutations for the same recessive disorder. If you get both bad copies, you can be affected.
Answered 10/4/2016
5.3k views
Maybe: We are all thought to carry a few recessive genes that do affect us because they are balanced by a normal one. If we marry a sib, they likely carry similar genes and we have a up to 25% risk of a bad pairing/gene with any pregnancy. A cousin would have fewer shared genes but some risk.The closer people are related the more at risk of a genetic disease.
Answered 12/28/2014
4.6k views
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