chr start stop reference nuc variant nuc depth genic status zygosity variant ID 7 3215647 3215648 A AT 16 GENIC heterozygous 767637134 7 3215648 3215649 T - 16 GENIC possibly homozygous 767637133 7 3216923 3216925 TT -- 27 GENIC heterozygous 767637135 7 3216924 3216925 T - 27 GENIC possibly homozygous 767637136