<prompt> Genomic imprinting is associated with-Silencing of paternal chromosomeSilencing of maternal chgromosomeAngelman syndromaAll  <response>: Ans. is a i.e., Silencing of paternal chromosome; b i.e., Silencing of maternal chromosome; c i.e., Angelman syndroma Prader Willi Syndrome Deletion occurs exclusively on paternal chromosome 15 deletion of band q 12 in long arm of chromosome 15 Features : Diminished fetal activity Hypotonia Obesity Mental retardation Sho stature Hypogonadotropic hypogonadism 