Everything about pattern imprint
Other than genetic causes of these syndromes, Additionally, there are scenarios exactly where the Snrpn/Ube3A cluster is intact but its genes are epigenetically misregulated. This is As an example the case if the two homologs of chromosome 15 originate with the same parent, a problem termed uniparental disomy (UPD). Maternal UPD is chargeable for P