chr start stop reference nuc variant nuc depth genic status zygosity variant ID 12 19172519 19172520 G C 30 GENIC homozygous 964827843 12 19172520 19172521 G T 31 GENIC homozygous 964827844 12 19172521 19172522 G T 32 GENIC homozygous 964827845