Whole-genome duplications are rare evolutionary events in which all the chromosomes and genes of a species are doubled. This supplies new genetic material to the gene pool and can provide an ...

Two bacteriologists showed that mutations arise spontaneously in bacterial cultures, thereby disproving Jean-Baptiste Lamarck ...

The two subspecies split about 20,000 years ago. But since then, they may have interbred more often than Smithsonian ...

Dogs were the first of any species that people domesticated, and they have been a constant part of human life for millennia.

Consistency and Heterogeneity of Microsatellite Instability (MSI) Status in Paired Biopsy and Surgical Specimens of Colorectal Cancer: A Necessity for MSI Reassessment After Treatment? Incorporating ...

A few years ago, Junius Nottingham Jr. was on a family vacation in Florida with his wife, his daughter and his son, Jeremy. Jeremy was 28 years old, over 6 feet tall and athletic. He had followed his ...

*Refers to the latest 2 years of stltoday.com stories. Cancel anytime. The phrase "it's in the genes" is no truer than when it comes to disease risks. Almost every disease is influenced in part by a ...