“This work is really important because the X chromosome has largely been excluded from genetic studies in the past,” said Amy ...

This includes primary amenorrhea in which you have no history of menstruation by age 16 and secondary amenorrhea in which you ...

Klinefelter syndrome is a genetic condition in which a boy is born with an extra X chromosome. Instead of the typical XY chromosomes in men, they have XXY, so this condition is also called XXY ...

In the 1980s, scientists knew little about the X and Y chromosomes. What they did understand was that every cell in the body contains 23 pairs of chromosomes. Each of these pairs is similar ...

If the X chromosome is present, or if the SRY gene is missing from the Y chromosome, the embryo will develop into a female via mechanisms that are not fully understood.

The FMR1 gene, which is on the X chromosome, makes a protein called FMR that helps nerve cells talk to one another. A child needs this protein for their brain to develop normally. Children with ...

One common hypothesis involves the difference in sex chromosomes between males and females—typical females have two X chromosomes, while typical males have one X and one Y chromosome.

CERA has received $300,000 over three years from The Felton Bequest to advance our groundbreaking research on female carriers ...

This illustration shows the structure of a chromosome, highlighting how DNA is tightly packed around disc-shaped proteins to form the characteristic X-shaped figure seen during cell division. (Image: ...

Images of the Algerian boxer Imane Khelif and Taiwan’s Lin Yu-ting on the medal podium in Paris will go down as some of the ...

Once upon a time, the Y chromosome — responsible for determining male sex — was as robust as its X counterpart. Fast forward a few million years, and it’s now a slimmed-down version of its ...