chr start stop reference nuc variant nuc depth genic status zygosity variant ID 20 3990926 3990927 G A 30 GENIC homozygous 109370873 20 3991123 3991124 A G 23 GENIC homozygous 109070785 20 3992126 3992127 C A 17 GENIC homozygous 109232072