chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 81881220 81881221 G GC 14 GENIC homozygous 60746882 1 81881316 81881319 CCC --- 6 GENIC heterozygous 61297082 1 81881317 81881319 CC -- 6 GENIC heterozygous 62136562