Which of the following is seen in Angelman Syndrome: (A) Uniparental disomy of maternal Chromosome, (B) Obesity, (C) Defective genomic imprinting of maternal chromosome, (D) All of the above
Answer is D. Angelman Syndrome

Uniparental disomy of Paternal Chromosome
Defective imprinting of maternal Chromosome

Clinical features
Mental retardation
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