chr start stop reference nuc variant nuc depth genic status zygosity variant ID 12 15745888 15745889 T C 19 GENIC homozygous 50437030 12 15748828 15748829 A - 21 GENIC homozygous 50800131 12 15747984 15747985 A T 43 GENIC heterozygous 50653948 12 15748883 15748884 G GT 20 GENIC homozygous 50074840 12 15748911 15748914 TTT --- 19 GENIC homozygous 50074842