chr start stop reference nuc variant nuc depth genic status zygosity variant ID X 74960120 74960121 A T 5 GENIC homozygous 125106595 X 74960148 74960149 G A 5 GENIC heterozygous 125106596 X 74960149 74960150 G A 5 GENIC heterozygous 125106597 X 74990493 74990494 G T 4 GENIC heterozygous 125106598