Final answer:
If A and B are unlinked, the genotype of the heterozygote is represented as A/B.
Step-by-step explanation:
If A and B are unlinked, the genotype of the heterozygote is represented by the separate alleles for each gene.
In this case, if A represents one allele and B represents another allele, the genotype of the heterozygote would be represented as A/B.
This indicates that the two genes are independent and located on different chromosomes.