Science And Genetics News

The latest science and genetics stories, summarized by AI

"The Enduring Impact of an Ice Age Discovery on Humanity"

Researchers have linked a gene inherited from ancient Denisovans to neurological disorders in modern humans, suggesting that it may have helped ancient humans adapt to colder climates. The gene variant SLC30A9, responsible for controlling zinc transportation across cell membranes, has been found to be associated with conditions such as depression, hyperactivity disorder, autism spectrum disorder, and schizophrenia. This gene variant, believed to have originated from interbreeding with Denisovans, has spread to majority of modern populations outside Africa, impacting their susceptibility to neuropsychiatric disorders. The discovery offers insight into the influence of Denisovan DNA on modern humans and sheds light on the genetic adaptations to different environments.

1 year ago•Source: Yahoo! Voices

"Genetic Expert Validates Single Ancestor Theory for All Blue-Eyed Individuals"

science-and-genetics

2.32 min•1 year ago

"Genetic Expert Validates Single Ancestor Theory for All Blue-Eyed Individuals"

An expert has confirmed the theory that all blue-eyed people are descendants of one person who lived near the Black Sea 6,000-10,000 years ago, with a mutation in the OCA2 gene causing brown eyes to turn blue. This single recessive gene is responsible for blue eyes, and all blue-eyed individuals are distantly related to the original founder. However, it's not the only gene that contributes to eye color, as there are about eight genes involved in determining eye color in humans.

via LADbible