chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 72379431 72379432 T G 4 GENIC homozygous 989822123 1 72379432 72379433 T C 4 GENIC homozygous 989822124 1 72379433 72379434 T G 4 GENIC homozygous 989822125 1 72379435 72379436 T A 4 GENIC homozygous 989822126