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A member asked:
Is the mother or father responsible for twins?
4 doctors weighed in across 2 answers
Good question!: Twinning appears to have a genetic component that is expressed in women, but can be inherited from either parent! thus, a woman is at high risk of having twins if she has a family history of twins, while the family history of the biologic father appears to have little/no effect on his partner's risk of having twins. If he has a positive family history of twinning, he could pass it to his daughter.
Answered 6/29/2016
5.6k views
Confused ??: Identical twins, which are rare, have the same genetic makeup and we assume stat out as one egg fertilized by one sperm. Fraternal twins start out as 2 eggs, fertilized by 2 separate sperm.In rare identical case, dad might have equal genetic influence, but she, not he released 2 eggs at once for the common fraternal twins. Mom genes dominate this arena.
Answered 6/29/2016
1.2k views
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