chr start stop reference nuc variant nuc depth genic status zygosity variant ID 2 223863918 223863919 G A 15 GENIC homozygous 61776517 2 223865521 223865522 C A 14 GENIC homozygous 59412274 2 223865853 223865854 G C 21 GENIC homozygous 59412275