chr start stop reference nuc variant nuc depth genic status zygosity variant ID 18 74164349 74164350 G C 31 GENIC homozygous 110499740 18 74164350 74164351 G T 31 GENIC homozygous 110402432 18 74164375 74164376 A C 22 GENIC homozygous 110746699 18 74164403 74164404 C T 24 GENIC homozygous 119501528