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 ...
Researchers have identified inherited genetic variants that may predict the loss of one copy of a woman's two X chromosomes as she ages, a phenomenon known as mosaic loss of chromosome X, or mLOX.
Twenty years after the Human Genome Project was declared complete, the Y chromosome has been fully sequenced for the first time. Most people have 22 pairs of chromosomes plus two sex chromosomes – ...