chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 251417995 251417996 A G 25 GENIC homozygous 108779674 1 251419873 251419874 T C 42 GENIC homozygous 108779676 1 251420729 251420730 C A 17 GENIC homozygous 109209617