Did you know that you have a second genome? Small cellular organelles called mitochondria contain their own circular DNA. What happens to your cells when this DNA mutates? Similar to the nuclear ...

Mitochondria, we now know, have many ways to release their DNA into the cytoplasm surrounding their host cell. Once there, mtDNA fragments can make their way into the nucleus either through pores ...

Normal metabolic activity produces reactive oxygen species (ROS) that, if not eliminated, can damage cellular components. As a result, ROS from overactive mitochondria are frequently cited as a source ...

Mitochondria live inside all our cells, but unlike other organelles, mitochondria have their own DNA, a small circular strand with about three dozen genes. Mitochondrial DNA is a remnant from the ...