Robertsonian chromosomes are large chromosomes that form when the long arm of a chromosome breaks and fuses with another chromosome. They are the most common type of chromosome rearrangement in humans ...

Trisomy 18, a conition where a person has three copies of chromosome 18 as opposed to two, is often associated with seizures and congenital heart diseases. Complications from Trisomy 13, where a ...

Approximately 3.5 million Americans are affected by obsessive-compulsive disorder (OCD). It can develop at any age and equally affects men, women, and children of all races, ethnicities and ...

Kansas City, MO—September 24, 2025—Open a high school biology textbook, and you’ll see human chromosomes lined up two by two, like socks in a drawer. But in about one out of every 800 people, two ...