chr start stop reference nuc variant nuc depth genic status zygosity variant ID 2 81629909 81629910 T C 25 GENIC homozygous 109878356 2 81631213 81631214 A G 44 GENIC homozygous 109878361 2 81631432 81631433 T C 37 GENIC homozygous 109878363