chr start stop reference nuc variant nuc depth genic status zygosity variant ID 20 7395279 7395280 C CA 7 GENIC homozygous 758031353 20 7395291 7395292 G - 4 GENIC heterozygous 758031354 20 7395423 7395424 T G 2 GENIC homozygous 651620582