All modern humans share DNA from two ancient populations that split 1.5 million years ago and reunited through interbreeding about 300,000 years ago. The genetic mixture is approximately 80% from one ...

The small study in patients with a rare disorder that causes liver and lung damage showed the potential for precisely targeted infusions. By Gina Kolata Researchers have corrected a disease ...

The basic pattern of genomic DNA methylation is established at the time of embryo implantation through a wave of de novo methylation, but CpG islands are protected through a mechanism that ...