chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 268842566 268842567 C G 16 GENIC homozygous 671953304 1 268843563 268843564 T G 27 GENIC homozygous 671953305 1 268846199 268846200 G A 22 GENIC homozygous 671953306