chr start stop reference nuc variant nuc depth genic status zygosity variant ID 20 4967204 4967205 T G 58 GENIC homozygous 109075718 20 4968299 4968300 T A 38 GENIC heterozygous 109075720 20 4968642 4968643 G A 65 GENIC possibly homozygous 109075722