Where is chromosome 22?

What is the 22nd chromosome responsible for?

Population risk: Large mutations on chromosome 22 appear to carry a smaller risk of some psychiatric conditions than previously thought. About 10 percent of people with a large mutation in chromosome 22 are diagnosed with autism, attention deficit hyperactivity disorder (ADHD) or intellectual disability by adulthood.

Is 22q a form of autism?

Many children with 22q have some social difficulties, developmental delays or learning disabilities. For the majority, the symptoms are not severe or extensive enough to warrant an autism diagnosis. Individuals with 22q also share common health issues. Many have heart defects and immune problems.

Is chromosome 22 inherited?

Humans normally have 46 chromosomes (23 pairs) in each cell. Two copies of chromosome 22, one copy inherited from each parent, form one of the pairs.

What happens if you are missing chromosome 22?

In children with this syndrome, a tiny piece of chromosome 22 is missing. This can cause many health problems. These problems may range from heart defects and developmental delays to seizures. The child may also have changes in how the eyes, nose, or ears look.

What is Di George syndrome?

DiGeorge syndrome is a condition present from birth that can cause a range of lifelong problems, including heart defects and learning difficulties. The severity of the condition varies. Some children can be severely ill and very occasionally may die from it, but many others may grow up without realising they have it.

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