Tamara Vanderent, 30, thought her daughters were fraternal twins for over a year, but she was stunned to discover that wasn't ...

It makes sense that identical twins would have the exact same DNA, right? Spoiler alert: Not always! Here's why. Identical twins (also called monozygotic or MZ twins) are conceived when a single ...

Alternatively, by comparing the experiences of identical twins with those of fraternal twins, who come from separate eggs and share on average half their DNA, researchers can quantify the extent ...

These identical twins had people confused. In 2015, Amy and Becky Glass were 47-year-olds completely addicted to being ...

most identical twins die years apart. They also, for the most part, die for different reasons. DNA does not perfectly determine what diseases a person will carry, and lifestyle choices have an ...

Except for identical twins, each person's DNA is unique. This is why people can be identified using DNA fingerprinting. DNA can be cut up and separated, which can form a 'bar code' that is ...

These identical twins had people confused. In 2015, Amy and Becky Glass were 47-year-olds completely addicted to being identical twins ...