chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 72379432 72379433 T C 2 GENIC homozygous 965708171 1 72379433 72379434 T G 2 GENIC homozygous 965708172 1 72379435 72379436 T A 2 GENIC homozygous 965708173