Humans carry 46 chromosomes. We get one from each parent, making 22 pairs of autosomal chromosomes, and one pair of sex chromosomes. Women usually carry two X (sex) chromosomes, while men typically ...

As many as one in 500 men may carry an extra sex chromosome — either an X or a Y — but very few of them likely know about it, a new study suggests. Very few of these men either reported being ...

A study on the extra chromosomes titled "Detection and characterization of male sex chromosome abnormalities in the UK Biobank study" has been published in the journal Genetics in Medicine. Data from ...

Researchers have uncovered a serious risk for folks who have an extra X or Y chromosome. Those with the genetic condition known as supernumerary sex chromosome aneuploidy have a risk for blood clots ...

Around 1 in 500 men carry an extra X or Y chromosome, according to a large study published this week in Genetics in Medicine. But most of those affected are unaware of their status, despite it ...