chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 251544491 251544492 A G 18 GENIC homozygous 188118614 1 251546195 251546196 C T 16 GENIC homozygous 188118615 1 251546440 251546441 C G 16 GENIC homozygous 188118616