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 ...

Inside every human cell, six feet of DNA folds into a nucleus that is only a few micrometers wide, yet still manages to switch genes on and off with exquisite precision. The latest work on ...

RIVERSIDE, Calif. -- A previously unknown type of DNA damage in the mitochondria, the tiny power plants inside our cells, could shed light on how our bodies sense and respond to stress. The findings ...

In a quiet lab at Utrecht University, researchers have built a tool that lets you watch one of life’s most serious crises ...

A live C. elegans animal with the mitochondria in its nervous system decorated with red and green fluorescent proteins. “Mitochondrial DNA is essential for cell function,” Dr Hahn said. “But as we age ...

Every cell in the body has the same DNA, but different cell types—such as muscle or brain cells—use different parts of it. Transcription factors help cells activate specific genes by reading certain ...

In two experiments, researchers have found that introducing people to "mental models" about how mRNA vaccination works and how the body protects itself from foreign DNA can preemptively or reactively ...