While this internal rivalry is usually hard to see, it becomes clearer when it involves genes on the X and Y chromosomes, ...

Female (XX) mammals inherit one X chromosome from each parent, but males (XY) receive an X from their ... The X chromosome carries at least 150 genes linked to intelligence. Since the mother ...

Traditionally, two copies of the X chromosome (XX), which has several hundred protein-coding genes, results in a female organism that produces larger gametes, or egg cells. One X chromosome and one ...

In evolutionary terms, fitness is defined as an organism's ability to survive and reproduce its genes into the next ...

Females (XX) carry twice as many X-linked genes on their sex chromosomes as males (XY). How do cells control gene expression to manage this potentially lethal dosage problem? A prime example of X ...