chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 245362441 245362442 T C 21 GENIC homozygous 875821293 1 245363792 245363793 A G 25 GENIC homozygous 875821294 1 245363918 245363919 C T 20 GENIC homozygous 875821295