Tag Archives: Gene

Gene from Extinct Humans Helps Tibetans Breathe Easy


Gene from Extinct Humans Helps Tibetans Breathe Easy

The genetic adaptation that allows Tibetans to survive and live comfortably at altitudes that would make most other humans on Earth terribly sick came from an extinct species of human. The variant of the EPAS-1 gene carried by nearly 90 percent of Tibetans closely matches that of the extinct Denisovan people. This gene is involved in regulating hemoglobin production and helps the body produce enough red blood cells to cope with low oxygen levels but not so many as to dangerously thicken the blood. The findings suggest that at some point in the history of the Tibetan people, their ancestors mated with Denisovans, thereby acquiring this adaptation. More… Discuss

GENETIC MUTATION SLOWS METABOLISM


Genetic Mutation Slows Metabolism

Obesity has long been viewed as a controllable condition that results from a combination of laziness and a lack of self-control. Although it is true that eating too much and exercising too little are factors in weight gain, scientific evidence is increasingly pointing to biological contributors as well. Researchers have found a genetic mutation that seems to increase appetite and slow metabolism. Many with this mutation are severely obese by early childhood. Previous research has uncovered several other genes that predispose people to obesityMore… Discuss