chr start stop reference nuc variant nuc depth genic status zygosity variant ID 20 7514649 7514650 G - 44 GENIC heterozygous 45777072 20 7514765 7514766 T C 27 GENIC heterozygous 45777073 20 7515150 7515151 T C 21 GENIC heterozygous 45413590