chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 249709849 249709850 C CAAAAAAA 15 GENIC heterozygous 754728693 1 249712591 249712592 C CT 19 GENIC homozygous 754728694 1 249716350 249716351 A - 6 GENIC heterozygous 754728695