chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 220049844 220049845 T C 30 GENIC homozygous 108542115 1 220053132 220053133 T A 14 GENIC homozygous 120512261 1 220056094 220056095 G A 29 GENIC homozygous 120512262