Mitochondrial DNA damage accumulates in dopamine-producing neurons, offering new insights to why they are vulnerable in ...

Mitochondrial DNA (mtDNA) variability, especially heteroplasmy, is believed to affect cellular immunobiogenesis, particularly ...

Now writing for Family Tree Magazine and giving talks on DNA, Karen described herself as a historian rather than a scientist.

For the Johnsons -- cousins of the Rand family, who are featured in "CNN Presents: Black in America" -- the answer arrives in the form of a certificate from African Ancestry Inc., a Maryland-based ...