Ever since an at-home DNA test revealed a Nigerian ancestry, life-long Evanston resident Tina Penick has reflected on what might have been. “What if we lived in Nigeria? What would that look like?” ...

Every time a cell divides, it must copy its entire genome so that each daughter cell inherits a complete set of DNA. During that process, enzymes known as polymerases race along the DNA to copy its ...

The Human Genome Project changed everything. A map of the entire human sequence of DNA was the starting point for an enormous number of discoveries, from disease genes to how humans evolved. But DNA ...

Judi Roth grew up in Elmira, N.Y., never having known her father’s parents. Her father, Michael Novice, a Polish Holocaust survivor, escaped the Warsaw ghetto at 13 and lived through three ...

Cells have evolved careful checks to ensure DNA is copied only once, but how they switch on replication at the right moment has been the focus of a 30-year research question. New work from the Crick ...

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 ...