Chromosomes in egg cells within fetal ovaries must be spliced and sorted perfectly. A new landmark study from UC Davis shows how protecting Holliday junctions allows this to happen.

Cutting-edge gene editing technology could eradicate Down syndrome, according to Japanese scientists. Down syndrome, which causes a range of developmental differences and affects 1 in 700 newborns in ...

Most don’t learn they carry this genetic anomaly unless they experience reproductive problems and seek testing. Robertsonians — commonly abbreviated as ROBs — are the stuff of genetics textbooks.

Scientists have confirmed that the Atlas blue butterfly carries the most chromosomes of any animal, with 229 pairs. Unlike duplication, its chromosomes split apart, reshaping its genome in surprising ...

The Y chromosome can disappear over time in human males, which may introduce a number of health problems. While the exact trigger for such degeneration is unknown, environmental factors can play a ...