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A member asked:
How do you have twins?
3 doctors weighed in across 2 answers
1 egg or 2 eggs: Fertilization of 2 separate eggs by 2 different sperm (non identical twins) or fertilization on 1 egg which subsequently splits to form 2 identical portions (identical twins) with each portion developing into a baby.
Answered 3/15/2016
3.6k views
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IVF, fertiliity drug: Both fertility drugs and in vitro fertilization increase the incidence of twinning. But this is not a desired effect. Ideally, babies should come one at a time, for the benefit of both the mothers and the babies.
Answered 11/23/2013
4.7k views
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