chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 81501096 81501097 A G 21 GENIC homozygous 109045237 1 81502251 81502252 C T 39 GENIC homozygous 109045238 1 81502393 81502394 G T 29 GENIC homozygous 109045239