Human DNA contains roughly 3 billion letters of genetic code. However, we understand only a fraction of what this vast ...

Mitochondria are the body's "energy factories," and their proper function is essential for life. Inside mitochondria, a set of complexes called the oxidative phosphorylation (OxPhos) system acts like ...

Eggs and embryos from people with polycystic ovary syndrome have altered patterns of so-called epigenetic tags, which could explain how the condition is inherited ...

While most known types of DNA damage are fixed by our cells' in-house DNA repair mechanisms, some forms of DNA damage evade repair and can persist for many years, new research shows. This means ...

Mitochondrial DNA (mtDNA) is here. Different cell types have different numbers of mitochondria. Cells with a high demand for energy tend to have greater numbers of mitochondria.