Identical twins may not be quite so identical

Identical twins may not be so identical after all. Even though identical twins supposedly share all of their DNA, they acquire hundreds of genetic changes early in development that could set them on different paths, according to new research.  Other studies have shown that chemical modifications, or epigenetic effects, can change which genes are expressed over the years, one factor that renders twins not completely identical. Still, other work has shown that identical twins can have different gene mutations, but didn’t determine how often they occur.

View the original article here: Identical Twins Are Genetically Different, Research Suggests

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