Answer:
The answer is: The first generation.
Step-by-step explanation:
In genetics the allelic frequency or gene frequency is the proportion observed of a specific allele with respect to the set of those who can occupy a given locus in the population.
If the frequencies remain constant from one generation to the next, the population is not experiencing evolutionary change, and is said to be in gene equilibrium.
Mendel's first law: Law of the uniformity of the hybrids of the first generation, and says that when two varieties of purebred individuals are crossed, both homozygous, for a given character, all the hybrids of the first generation are equal.
The answer is: The first generation.