chr start stop reference nuc variant nuc depth genic status zygosity variant ID 7 117025942 117025943 A T 20 GENIC homozygous 115846105 7 117025945 117025946 A T 20 GENIC homozygous 115846107 7 117028918 117028919 C G 22 GENIC homozygous 115846115