There are two different kinds: X and Y, which determine whether you’re biologically male (XY) or female (XX). Chromosomes themselves are made up of proteins and DNA that carry your genetic ...

Female (XX) mammals inherit one X chromosome from each parent, but males (XY) receive an X from their mother and a Y sex chromosome from their father. X and Y chromosomes determine not only the ...

Our sex chromosomes were originally a pair of typical XY chromosomes, a trait still observed in birds and reptiles. Even in metronome mammals, like platypuses and echidnas, XY chromosomes are ...

The Y chromosome that determines the male gender in newborns is slowly degrading, and its loss could be dangerous for elderly ...

Autoimmune diseases, including systemic lupus erythematosus (SLE), are more common in women than men, and scientists are ...

Dr. Ashly Smith, from Small Door Veterinary, told Newsweek that male calico cats are extremely rare, with estimates suggesting that only about 1 in 3,000 calico cats are male.

Transcriptionally “silent” Barr bodies maintain gene equality in male (XY) and female (XX) cells. How are these unique sex chromosomes formed? "The sex of a somatic cell as highly ...

He was referring to a tweet that Orlovsky sent during the Paris Olympics when Algerian boxer Imane Khelif dominated Italian ...

Algeria's Imane Khelif (Blue) reacts after beating Thailand's Janjaem Suwannapheng in the women's 66kg semi-final boxing ...

It all started with a friendly conversation, and it ended with an awkward question that turned out to be part of an interview ...

Female (XX) mammals inherit one X chromosome from each parent, but males (XY) receive an X from their mother and a Y sex chromosome from their father. X and Y chromosomes determine not only the ...