chr start stop reference nuc variant nuc depth genic status zygosity variant ID 2 73820420 73820421 C A 17 GENIC homozygous 109830813 2 73821514 73821515 A G 25 GENIC homozygous 109830814 2 73821998 73821999 A G 21 GENIC homozygous 109830815