We are what we are because of ancient and mysterious genetics.

Researchers used a new method to investigate past interbreeding with Homo sapiens that doesn't require ancient DNA. The ...

(Alones Creative/iStock/Getty Images) One of the most iconic visual representations in biological science is the double helix ...

Modern humans carry DNA from two mysterious extinct lineages in addition to Neanderthals and Denisovans. Their hidden genetic ...

Our DNA is often pictured as a simple spiral, like a piece of rope held taut. But inside cells, it folds into a complex three ...

Scientists have identified how specific genetic changes function in cells to influence disease risk and other human health traits. By probing regions of DNA previously linked to disease, the work has ...

Before a cell divides, its DNA is replicated so that each daughter cell inherits the same genetic information. The two copies, known as "sister chromatids," are held together by a ring-shaped protein ...

DNA is often called the blueprint of life, but what does that really mean? Elizabeth Worthey, Ph.D., associate professor, Department of Genetics in the Heersink School of Medicine, explains everything ...