chr start stop reference nuc variant nuc depth genic status zygosity variant ID 20 6910004 6910005 T C 20 GENIC heterozygous 46119914 20 6910020 6910021 T C 22 GENIC heterozygous 45735705 20 6910029 6910030 G C 18 GENIC heterozygous 45406288