chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 204884220 204884221 G T 28 GENIC homozygous 75735720 1 204884543 204884544 C T 24 GENIC possibly homozygous 75204915 1 204885907 204885908 G A 18 GENIC homozygous 75735721