chr start stop reference nuc variant nuc depth genic status zygosity variant ID 20 4486836 4486837 C G 13 GENIC homozygous 109329487 20 4486887 4486888 C T 13 GENIC homozygous 109329489 20 4488878 4488879 G A 3 GENIC heterozygous 109576044