chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 216970314 216970315 T C 16 GENIC homozygous 108536279 1 216972508 216972509 C T 31 GENIC homozygous 108536281 1 216972961 216972962 G A 30 GENIC homozygous 108536282