chromosome

Their research centers on TERRA, an RNA molecule that helps maintain the ends of chromosomes -- the regions of DNA that support cell stability and overall health.

When a virus approaches the bacterial cell, PinQ triggers a DNA inversion, flipping a section of genetic code inside the chromosome.

Having a pair of X chromosomes may shield females from harmful mutations and extend their lifespan.

Before a cell can split into two, it must first copy all of its chromosomes so each new cell inherits a complete set of genetic material.

A new review suggests that vitamin D supplements may help protect the ends of our chromosomes, known as telomeres, which play a vital role in slowing the aging process.