Cells found in different branches of a tree have different patterns of DNA methylation, changes in which accumulate over time.

Researchers identify deletions in the N-terminal domain of the spike protein that allow the coronavirus to avoid antibody neutralization and that may contribute to the emergence of new variants.

A preprint casts doubt on vaccine effectiveness in light of certain mutations in the 501Y.V2 variant that emerged from South Africa.

Whole-genome sequencing reveals a wide range of UV-induced DNA changes in human skin cells, and lighter skin collects more mutations, sometimes to “sky high” levels.

DNA replication errors during cell division cause monozygotic twins to diverge from each other even during the earliest stages of development, a new study finds.

Three studies identify unintended consequences of gene editing in human embryos, including large deletions and reshuffling of DNA.

The small number of genetic differences between the original strain of the novel coronavirus from Wuhan and those currently circulating in the US population indicates that a vaccine may likely offer lasting immunity.

Researchers determined that the incidence of new genetic mutations is comparable in people of different ancestries, but lower in Amish people.

Colorectal tumor cells limit their DNA repair in response to a targeted therapy, giving them a greater chance to develop resistance to the drug.