chr start stop reference nuc variant nuc depth genic status zygosity variant ID 20 4392917 4392918 T A 4 GENIC homozygous 125175676 20 4392919 4392920 T A 4 GENIC heterozygous 125175677 20 4395088 4395089 C G 13 GENIC homozygous 125209923