During DNA replication, the classic double helix can temporarily rearrange into an alternative structure known as a DNA three ...

The researchers were focusing on i-motif DNA, which has an interlocking structure resembling a knot, and was only confirmed to be found in living human cells in 2018.

Two new landmark studies show how a seeming tangle of DNA is actually organized into a structure that coordinates thousands of genes to form a sperm cell. The work, published March 3 as two papers in ...