chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 87407703 87407704 T C 22 GENIC homozygous 61951011 1 87408120 87408121 C T 23 GENIC homozygous 60752926 1 87410017 87410018 C G 22 GENIC homozygous 61951013