Angelman Syndrome – Symptoms and Causes

By
Sherry Hight
-

7Paternal Uniparental Disomy

Normal infants basically receive 1 chromosome 15 copy from the father and 1 chromosome 15 copy from the father. Around 5 percent of Angelman syndrome cases occur when the children get both chromosome 15 copies from their fathers. This means that they do not have any maternal copies. This condition is also known as uniparental disomy, which would happen with any chromosome. However, when it affects chromosome 15, Angelman syndrome can be caused. [7]

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