chr start stop reference nuc variant nuc depth genic status zygosity variant ID 20 5488760 5488761 C T 21 GENIC homozygous 109420512 20 5489007 5489008 G T 23 GENIC homozygous 109078140 20 5489360 5489361 G A 36 GENIC homozygous 109420514