The binary division of boys and girls is similar to black and white to most of us. However, the controversy at the 2024 Olympics in Paris, in the boxing category for women, has raised questions ...

A report from Science Alert raises concerns about the potential future disappearance of boys, suggesting that the Y ...

a Y and an X chromosome and it will become a male. But exactly what happens in the womb to make a boy or a girl? This interactive feature illustrates the astonishing changes that occur during the ...

The biological sex of a human being is determined by which chromosomes make up that baby's genetic material. Females usually have two X chromosomes, while males tend to have one X and one Y ...

A chromosome is a single, long molecule of DNA. These highly organized structures store genetic information in living organisms. Small sections of the chromosome, called genes, code for the RNA ...

The genetic information within each of these daughter cells is identical. A human cell contains 46 chromosomes. To simplify our illustration, we'll show only four. Though the genetic code of a ...

Boys are three times more likely to be diagnosed ... risk factors for autism may be linked to the Y chromosome. Autism ...