zuwa nassi da ke ƙasa sannan ku amsa tambayar daga baya a cikin harshe ɗaya kamar nassi: Passage: PWS yana haifar da wani abu na epigenetic da aka sani da imprinting, wanda ya haifar da sharewar kwafin mahaifin SNRPN da NDN necdin genes tare da tarin snoRNAs: SNORD64, SNORD107, SNORD108 da kwafi biyu na SNORD109, kwafi 29 na SNORD116 (HBII-85) da kwafi 48 na SNORD115 (HBII-52). Waɗannan suna kan chromosome 15 da ke yankin 15q11-13. Wannan yankin da ake kira PWS / AS na iya ɓacewa ta ɗayan hanyoyin da yawa na kwayoyin halitta, wanda a mafi yawan lokuta yakan faru ne ta hanyar maye gurbi. Sauran, ƙananan hanyoyin da aka saba da su sun haɗa da yanayin rashin daidaituwa, maye gurbi na chromosome, sauye-sauye na chromosome, da kuma sharewar kwayar halitta. Saboda ɓarnawar mahaifa, kwafin da aka gada na waɗannan kwayoyin halitta suna kusan shiru, kuma kawai kwafin mahaifa ne ke wakiltar cutar. Tambaya: Mene ne yake haifar da asarar
abin da aka sani da imprinting