chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 20883351 20883352 A T 4 GENIC homozygous 125269096 1 20953700 20953701 C A 3 GENIC heterozygous 120513610 1 21060575 21060576 T C 22 GENIC homozygous 108052806