Each time a cell divides, a small section of each chromosome's protective cap—the telomere—is worn away. Most cells use an ...

The Synthetic Human Genome, or Syn HG, a project launched on June 26th, aims to change that. Funded partly by Wellcome, a ...

The oldest known Egyptian DNA sample, from a man who lived between 4,500 to 4,800 years ago, offers new insights into the ...

All tree leaves have an outer layer called the epidermis, which can also be used in the identification process. This leaf "skin" always has a waxy cover called the cuticle and varies in thickness.