Battle of the sex chromosomes: How competition affects X vs. Y sperm fitness
In evolutionary terms, fitness is defined as an organism's ability to survive and reproduce its genes into the next ...
Hosted on MSN13d
Silent X chromosome genes 'reawaken' in older females, perhaps boosting brain power, study finds
Dormant genes on the X chromosome may reawaken in old age, potentially giving the aging female brain a boost that the male ...
The Associated Press- Sports on MSN11d
World Athletics to require chromosome testing of women's track and field athletes
The planned changes include reinstating a version of chromosome testing that was discontinued in the 1990s, requiring ...
LGBTQ Nation11d
World Athletics will require chromosome tests to prevent trans women from competing
Determining sex by chromosomes has also been highly contested ... “Preserving the integrity of competition in the female category is a fundamental principle of the sport of athletics ...
Chicago Tribune11d
World Athletics to require chromosome testing of athletes in women’s track and field
The planned changes include reinstating a version of chromosome testing that was discontinued in the 1990s, requiring athletes who compete in the female category to submit to a cheek swab or dry ...
Yahoo13d
Silent X chromosome genes 'reawaken' in older females, perhaps boosting brain power, study finds
Alongside hormones, the sex chromosomes — X and Y — are one of the starkest biological differences between males and females, and they could help provide biological explanations for why these ...