In human cells, there are about 20,000 genes on a two-meter DNA strand—finely coiled up in a nucleus about 10 micrometers in diameter. By comparison, this corresponds to a 40-kilometer thread packed ...

A stretch of viral DNA in the mouse genome gives cells in early-stage embryos the potential to become almost any cell type in ...

New research sheds light on how cells repair damaged DNA. For the first time, the team has mapped the activity of repair proteins in individual human cells. The study demonstrates how these proteins ...

For decades, biology textbooks taught that DNA’s story could be told with a single image: two elegant strands twisting in a ...

Every cell in a body contains the same genetic sequence, yet each cell expresses only a subset of those genes. These cell-specific gene expression patterns, which ensure that a brain cell is different ...

Changes in genes have been linked to the development of different diseases for a while. However, it's not exactly clear what ...

It has been claimed that because most of our DNA is active, it must be important, but now human-plant hybrid cells have been ...

The tiny little powerhouses of our cells, the mitochondria, are unique among organelles because they carry their own tiny ...