Do Identical Twins Have Identical DNA?


Whether your children are identical or fraternal twins is likely to be one of the first questions you’ll be asked if you’re a parent of twins. The joy is frequently obvious once people learn that your twins are identical.

It’s a hilarious concept in popular culture to dress kids alike and then struggle to tell them apart. However, despite centuries of social beliefs that identical twins were, in fact, identical — and, more recently, even identical down to genetic makeup — the truth may not be as clear-cut as we had originally believed.