chr start stop reference nuc variant nuc depth genic status zygosity variant ID 20 6127456 6127457 A G 10 GENIC homozygous 63574944 20 6127889 6127890 T C 9 GENIC homozygous 63345525 20 6128470 6128471 G A 19 GENIC homozygous 63574948 20 6128655 6128656 A G 17 GENIC homozygous 63345537