Monozygotic twin
= Monozygotic twin
{title2=MZ twin}
This is the single-zygote subtype of a <twin>.
Monozygotic twins develop from one zygote and are modeled as sharing essentially all additive genetic variation.
= Monozygotic twin
{title2=MZ twin}
This is the single-zygote subtype of a <twin>.
Monozygotic twins develop from one zygote and are modeled as sharing essentially all additive genetic variation.