chr start stop reference nuc variant nuc depth genic status zygosity variant ID 20 13745774 13745775 G C 30 GENIC homozygous 45687989 20 13745869 13745870 C A 33 GENIC possibly homozygous 45434889 20 13745871 13745872 T G 35 GENIC possibly homozygous 45434891