chr start stop reference nuc variant nuc depth genic status zygosity variant ID 12 54133675 54133677 GG -- 16 GENIC homozygous 50260421 12 54134405 54134406 G C 30 GENIC homozygous 50260423 12 54134840 54134841 A G 38 GENIC homozygous 50260425 12 54135598 54135599 T C 28 GENIC homozygous 50260427