chr start stop reference nuc variant nuc depth genic status zygosity variant ID 20 4395090 4395091 G C 6 GENIC homozygous 109233407 20 4395721 4395722 T A 8 GENIC homozygous 109390009 20 4396156 4396157 C T 10 GENIC homozygous 109390010