chr start stop reference nuc variant nuc depth genic status zygosity variant ID 20 31314628 31314629 C G 20 GENIC homozygous 109164636 20 31315315 31315316 A G 20 GENIC homozygous 109164638 20 31318044 31318045 C T 28 GENIC homozygous 109164640 20 31318345 31318346 C T 15 GENIC homozygous 109164642