chr start stop reference nuc variant nuc depth genic status zygosity variant ID 7 21904208 21904209 G C 12 GENIC homozygous 138032975 7 21904460 21904461 C T 19 GENIC homozygous 138032976 7 21905297 21905298 T C 22 GENIC homozygous 138032977