Sex determination at birth is decided on the chromosomes the baby has. A female has two X chromosomes, whereas a male has one X and one Y chromosome. According to Medline Plus, in every cell, humans ...

In what might be a surprise for some, the male sex chromosome is far more complex than its female counterpart. This is why it’s taken scientists so long to work out exactly what makes a male a male.

After over two decades, the human genome sequence is finally complete. The holdout? The Y chromosome. Although far smaller than the other 23 chromosomes, Y is a genetic contortionist, carrying ...

Height is one of the most evident sex-based differences observed in humans, as men are on an average 13 cm (5 inches) taller than women. Sex hormones certainly play a significant role in driving this ...

What was once the final frontier of the human genome — the Y chromosome — has just been mapped out in its entirety. Led by the National Human Genome Research Institute (NHGRI), a team of researchers ...

The Y chromosome is the smallest chromosome, and holds the least amount of genes, but scientists are still learning about all of its biological functions. Research has shown that many men start to ...

Rare Chromosome Awareness Day, celebrated in June, is an opportunity to increase public knowledge about rare chromosome and gene disorders. These conditions can lead to various physical, developmental ...

Each human cell contains 23 pairs of chromosomes that carry DNA within their nucleus. The X and Y chromosomes, commonly referred to as the sex chromosomes, are one such pair. They determine the ...

People with an additional X or Y chromosome—a genetic condition known as supernumerary sex chromosome aneuploidy—have an increased risk of developing blood clots known as venous thromboembolism (VTE), ...

For decades, the Y chromosome — one of the two human sex chromosomes — has been notoriously challenging for the genomics community to sequence due to the complexity of its structure. Now, this elusive ...