Fraternal twins can look alike as much as two siblings ... This is called superfecundation. Mixed-gender twins are the most common type of fraternals, some 50 percent are boy-girl.

Languages: English. You can get in touch with Alyce by emailing a.collins@newsweek.com After believing that her daughters were fraternal twins for so long, a mom was stunned when a genetic test ...

But can identical twins be different genders? The short answer is yes. Fraternal twins, on the other hand, do not share the same DNA. As a result, they can be assigned different sexes at birth and ...

There are two types of twins, identical and fraternal twins. Identical twins develop from one egg; the egg is fertilized by the sperm then divides into two. Identical twins are similar in ...

This is called superfecundation. The Science of Fraternal Twins Mixed-gender twins are the most common type of fraternals, some 50 percent are boy-girl. To understand this combination: Males have ...