chr start stop reference nuc variant nuc depth genic status zygosity variant ID 16 74959938 74959939 C T 21 GENIC homozygous 111862139 16 74961192 74961193 A G 27 GENIC homozygous 111862140 16 74961829 74961830 C G 19 GENIC homozygous 111862141 16 74963813 74963814 T C 19 GENIC homozygous 111862142