chr start stop reference nuc variant nuc depth genic status zygosity variant ID 20 4216560 4216561 G A 60 GENIC possibly homozygous 109073806 20 4218022 4218023 A G 63 GENIC homozygous 109073808 20 4218419 4218420 G T 82 GENIC homozygous 109073810