chr start stop reference nuc variant nuc depth genic status zygosity variant ID 20 4852503 4852504 C A 8 GENIC possibly homozygous 109233659 20 4852961 4852962 T G 23 GENIC possibly homozygous 109233660 20 4853449 4853450 C T 24 GENIC homozygous 109233661