chr start stop reference nuc variant nuc depth genic status zygosity variant ID 16 20486170 20486171 T C 20 GENIC homozygous 47327805 16 20486491 20486497 TCTGCC ------ 18 GENIC homozygous 47327807 16 20486589 20486590 T G 28 GENIC homozygous 47327809