chr start stop reference nuc variant nuc depth genic status zygosity variant ID 7 18704776 18704777 A G 18 GENIC homozygous 116320846 7 18705288 18705289 A G 25 GENIC possibly homozygous 116320848 7 18705734 18705735 T C 22 GENIC homozygous 116320850