Twin
= Twin
{wiki}
Twins are two offspring from the same gestation. <Monozygotic twins> arise from one fertilized egg, while <dizygotic twins> arise from two. The distinction supplies the biological premise for <twin studies>.
= Twin
{wiki}
Twins are two offspring from the same gestation. <Monozygotic twins> arise from one fertilized egg, while <dizygotic twins> arise from two. The distinction supplies the biological premise for <twin studies>.