News Genetics

All identical twins may share a common set of chemical markers on their DNA

Testing for the marks could reveal if someone was conceived as an identical twin

twin girls stand side by side

Pairs of identical twins share the same set of genes. New research reveals that identical twins everywhere also share a set of chemical tags along their DNA that denotes they developed in the womb as a twin.

Josie Gealer/Getty Images

By Jonathan Lambert

- More than 2 years ago

Identical siblings are used to sharing a lot with their twin, including their DNA.