What is the cause of Angelman Syndrome?

a) A mutation that occurs randomly after birth or due to a viral infection in the mother during pregnancy.

b) The shutting off of the paternal chromosome and the deletion on Chromosome 15 from the mother.

c) The shutting off of the maternal chromosome and the deletion on Chromosome 15 from the father.

d) A large deletion of chromosome 15 that is inherited from each parent.

Angelman syndrome is caused by a genetic mutation on chromosome 15.

Explanation:

Angelman syndrome is caused by a genetic mutation on chromosome 15. The name of this gene is UBE3A. Normally, people inherit one copy of the gene from each parent, and both copies become active in many areas in the body. Angelman syndrome occurs when only one copy of the gene is active in certain areas of the brain.

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