Humans have 23 pairs of chromosomes, only one of which determines a person’s sex-linked characteristics. The remaining 22 pairs contain bundles of genetic instructions that help determine the other, non-sex-related traits. Since the discovery of DNA, researchers have endeavored to learn all there is to know about these coded sequences, including how much they weigh. … Continue reading Unexplained excess mass in human chromosomes puzzles scientists
Breakthrough (and scary) technology allows scientists to collect DNA from the air
A breakthrough technology allows scientists to obtain DNA samples from the air. The new technology collects environmental DNA (eDNA) shed by animals and humans for identification. Previously used to study fish, animals and invasive species, eDNA now shows promise in fields such as infectious disease epidemiology and forensics. Prior to the study, eDNA had been … Continue reading Breakthrough (and scary) technology allows scientists to collect DNA from the air
