chr start stop reference nuc variant nuc depth genic status zygosity variant ID 10 77765017 77765018 G C 10 GENIC homozygous 877670479 10 77765043 77765044 C A 4 GENIC homozygous 877670480 10 77765049 77765050 G T 5 GENIC homozygous 877670481