Final answer:
In the Hardy-Weinberg equilibrium, the frequency of the heterozygote genotype is represented by 2pq.
Step-by-step explanation:
The term in the algebraic form of the Hardy-Weinberg equilibrium for the heterozygote genotype frequency is 2pq. This equation represents the frequency of heterozygotes in a population under the assumption that the population is in equilibrium, meaning that allele frequencies are not changing over time. The Hardy-Weinberg formula is p² + 2pq + q² = 1, where 'p' is the frequency of the dominant allele, and 'q' is the frequency of the recessive allele, with the sum of these allele frequencies being equal to 1 (p + q = 1).