In this week's PEOPLE cover story, Denise Richards opens up about her daughter Eloise, and the blessings and challenges she's ...

Changes in either chromosome structure or number can occur ... % for an affected live-born infant in cases when a parent has a 13:14 Robertsonian translocation. If a parent has a 13:13 ...

Cytologists had been studying chromosome behavior since the late 19th century. Why did it take until 1956 to figure out the correct human chromosome number, thanks to Joe Hin Tjio and Albert Levan?

A Bradford mum has expressed worry after her baby daughter was diagnosed with a condition only 220 people have in the world.

Translocations generate novel chromosomes, but are often linked to disorders like infertility and cancer. How do these new chromosomes generate problems, and how are they detected? Translocations ...