chr start stop reference nuc variant nuc depth genic status zygosity variant ID 20 6652125 6652126 G GC 4 GENIC homozygous 45399898 20 6653996 6653997 C T 23 GENIC homozygous 45675325 20 6654922 6654925 AAA --- 16 GENIC heterozygous 45621372 20 6654923 6654925 AA -- 16 GENIC possibly homozygous 45399902