chr start stop reference nuc variant nuc depth genic status zygosity variant ID 7 721829 721829 A 14 GENIC homozygous 137932308 7 721848 721849 C T 15 GENIC homozygous 137986976 7 722832 722833 C T 21 GENIC homozygous 137986977 7 722977 722978 C T 18 GENIC homozygous 137986978