Can you have identical twins that are boy/girl?

Question

I heard if that happens then there is something genetically wrong with one of them. ??

Answer

There are like less than 10 cases in the whole world but yes! They have to be male twins, and when they split one twin loses its Y chromosome! So it develops as a female, but cannot reproduce! Pretty cool :)

Answer

Identical twins are always of the same gender. You can have faternal twins that are boy/girl but not identical.

Answer

There can be male female monozygotic twins. It's rare but possible

Answer

No. Identical twins come from 1 egg that has been fertilized by 1 sperm and then splits interested 2 zygotes after fertilization. Once the sperm has fertilized the egg sex of the baby/ babies is already determined. Boy girl twins are fraternal because they come from 2 separate eggs that are fertilized by 2 separate sperm