chr start stop reference nuc variant nuc depth genic status zygosity variant ID 7 84975552 84975553 C A 57 GENIC homozygous 54002002 7 84975789 84975790 T A 50 GENIC homozygous 54002003 7 84975864 84975865 G A 54 GENIC homozygous 54002004