chr start stop reference nuc variant nuc depth genic status zygosity variant ID 2 55874846 55874847 G A 9 GENIC homozygous 120142674 2 55920152 55920153 G T 2 GENIC homozygous 109766041 2 55920154 55920155 C T 2 GENIC homozygous 109766043