chr start stop reference nuc variant nuc depth genic status zygosity variant ID 20 3677533 3677534 G A 42 GENIC homozygous 109417406 20 3677580 3677581 C T 54 GENIC homozygous 109069417 20 3677704 3677705 G T 53 GENIC homozygous 119756297 20 3677708 3677709 G A 52 GENIC homozygous 119756298