Each eukaryotic chromosome is composed of DNA coiled and condensed around nuclear proteins called histones. Humans inherit one set of chromosomes from their mother and a second set from their father.

Indeed, when the very first mammals evolved between 100 and 200 million years ago, they didn't have sex chromosomes at all, ...

The separated chromosomes are then pulled by the spindle to opposite poles of the cell. Anaphase ensures that each daughter cell receives an identical set of chromosomes. Finally, during telophase ...

World Down Syndrome Day aims to raise awareness about the condition and ways to manage it. Down Syndrome is a genetic ...

Haploid gametes contain 23 single chromosomes. copies of the genetic information are made the cell divides twice to form four gametes, each with a single set of chromosomes (haploid) all gametes ...

About 50 percent of Cohanim in both Sephardic and Ashkenazic populations have an unusual set of genetic markers on their Y chromosome. What is equally striking is that this genetic signature of ...