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 ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." The 23 rd chromosome base pair contains what are known as our sex chromosomes. For most females, this ...

Genes are segments of DNA (deoxyribonucleic acid) that are located inside every human cell. The DNA inside each cell is tightly coiled in structures called chromosomes. Each chromosome contains a ...

Most people are born with 46 chromosomes that are divided into 23 pairs. Chromosome pairs carry genes from each parent, which determine a person’s physical characteristics, like their height or eye ...

The chromosome associated with male development, which is the last mysterious piece of the human genome, has been fully sequenced by a team of more than 100 researchers around the world, including ...

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.

Researchers from Skoltech, the University of Potsdam, and the Massachusetts Institute of Technology have discovered a ...

The Y chromosome is perhaps the most puzzling part of the human genome. Associated with male development, it is chock-full of repetitive and inverted stretches of DNA, a hurdle that makes it ...

Microarray testing can only be performed on an amniocentesis or CVS. These tests are more advanced than NIPT and are capable of looking at chromosomes to find out if any of them are missing a small ...

A genome sequence for the flatworm Schmidtea mediterranea reveals a chromosome that might be primed to become a sex chromosome. The finding offers a remarkable chance to study the evolution of sex ...

Mosaic trisomy 8 is a rare genetic condition caused by an extra chromosome. Sometimes called trisomy 8 mosaicism, this condition develops well before birth. It's a result of an abnormality in how ...

Turner syndrome is a chromosomal condition involving a person’s sex chromosomes. It is considered mosaic when an X chromosome is missing in some cells in people who have two X chromosomes. Share on ...