Twins Bruce and Brian Reimer were born in Canada as two perfectly normal boys But after seven months, both were having difficulty urinating Acting on advice, the parents, Janet and Ron, took theBehaviors The mother of boyandgirl twins and author of Twinspiration RealLife Advice from Pregnancy through the First Year, answers questions about her twinsIdentical, or monozygotic, twins may or may not share the same amniotic sac, depending on how early the single fertilized egg divides into 2 If twins are a boy and a girl, clearly they are fraternal twins, as they do not have the same DNA A boy has XY chromosomes and a
Types Of Twins Identical Fraternal And Other Unique Types