The DNA packed inside every human cell contains instructions for life, written in billions of letters of genetic code. Every time a cell divides, the complete code, divided among 46 chromosomes, must ...

A private Florida DNA lab is analyzing evidence in the abduction of Nancy Guthrie, mother of "Today" co-anchor Savannah Guthrie. The decision to use a private lab instead of the FBI has drawn scrutiny ...

DENVER, March 8 (Reuters) - A retired DNA scientist for Colorado's state crime laboratory is under investigation over suspicion she manipulated genetic test results in several hundred cases dating ...

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 ...