Chromosomal replication must be highly regulated to ensure that the number of chromosomes in the cell remains constant. This means that chromosomal DNA must be replicated only once per cell cycle.

A new study in the journal Nature throws a new theory into the fray. Analyzing a wealth of DNA collected from fossilized human bones, the researchers found that the first Indo-European speakers ...

Ancient DNA locates the geographic origin of Proto-Indo-Europeans and Proto-Anatolians and describes their early migrations out of the Caucasus Lower Volga and North Pontic regions of present-day ...

Ancient DNA analyses bring to life the 11,000-year intertwined genomic history of sheep and humans by Trinity College Dublin Vessel supported by two rams, 2600 to 2500 BCE, object number 1989.281.3.

Not only does Bennu contain evidence of ancient pools of liquid water — it also carries minerals crucial to life, amino acids, and the five nucleobases for DNA and RNA. As asteroids crash into ...