chr start stop reference nuc variant nuc depth genic status zygosity variant ID 2 251805412 251805414 TT 6 GENIC homozygous 127764245 2 251805414 251805415 T G 6 GENIC homozygous 120132169 2 251805417 251805417 G 6 GENIC homozygous 127764246 2 251805418 251805419 C A 7 GENIC homozygous 120132170