Enumerate three most characteristic criteria for designating a Mendelian population.

Explanation

To designate a Mendelian population, three most characteristic criteria can be enumerated as follows:

1. **Large Population Size**: The population should be large enough to ensure that genetic experiments can be conducted effectively. A larger population size helps in maintaining genetic diversity and reduces the impact of random genetic drift.

2. **Potential for Free Flow of Genetic Material**: There must be a potential for free flow of genetic material among the individuals within the population. This means that mating should occur without restrictions, allowing for the exchange of genes and maintaining genetic variability.

3. **Negligible or Nil Migration**: There should be negligible or no migration of individuals into or out of the population. This criterion ensures that the gene pool remains stable and that the genetic composition of the population is not altered by outside influences.