Essentially, two of the triplets are monozygotic (identical) twins, sharing the same general DNA characteristics, while the third triplet having been conceived with a different egg and sperm has a unique genetic makeup from the other two.

Can Identical triplets have different DNA?

Because triplets like the Dahms share identical genetic information, common knowledge dictates that their DNA should match. Although environmental factors can switch certain genes on and off throughout a twin's lifetime, the DNA itself shouldn't differ among the sisters at all.

Do identical twins have 100% the same DNA?

It is true that identical twins share their DNA code with each other. This is because identical twins were formed from the exact same sperm and egg from their father and mother. ... While this rarely happens, it makes it so that one identical twin may have a genetic condition, while the other twin does not.