chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 224872700 224872701 T C 36 GENIC homozygous 74728574 1 224873492 224873493 T A 28 GENIC homozygous 74728580 1 224875247 224875248 T C 23 GENIC homozygous 74728586