chr start stop reference nuc variant nuc depth genic status zygosity variant ID 20 4871479 4871480 G A 7 GENIC homozygous 109371152 20 4873745 4873746 T A 29 GENIC homozygous 109233672 20 4873900 4873901 A G 32 GENIC homozygous 109233673