Can twins have different blood types?

Brothers and sisters can have different blood type same way fraternal twins can have different blood types . In fact the whole family can have different blood group, Yes if they are fraternal twins and, although much less common, it is also even possible if they are identical twins. read more

And since brothers and sisters can have different blood types, so too can fraternal twins. It is a different story if the twins are identical. Identical twins come from the same egg and the same sperm and so share nearly identical DNA. read more

It depends on what blood types the parents have. If they have the same blood type, most likely the twins will have the same. The opposite with different blood types. read more

And since brothers and sisters can have different blood types, so too can fraternal twins. It is a different story if the twins are identical. Identical twins come from the same egg and the same sperm and so share nearly identical DNA. For identical twins to have different blood types, something needs to happen to one twin’s DNA. read more