chr start stop reference nuc variant nuc depth genic status zygosity variant ID 18 55040298 55040299 T C 4 GENIC homozygous 63895775 18 55040304 55040305 C G 2 GENIC homozygous 63895776 18 55040319 55040320 T A 2 GENIC homozygous 64924805