chr start stop reference nuc variant nuc depth genic status zygosity variant ID 20 5853368 5853369 T C 23 GENIC homozygous 63344787 20 5853756 5853757 G C 13 GENIC homozygous 63344788 20 5853791 5853792 C G 14 GENIC homozygous 63344789