List the five conditions that must be met for a population to remain static or in genetic equilibrium.

Question

If any of these conditions is not met, then the population will be more prone to evolution.

Answer 1

absence of natural selection,

no mutation,

no gene flow/immigration

infinite population

random mating

if any of these conditions are not met, then evolution is occurring.

Answer 2

I can only think of a couple of them, so here we go:

1.  The population must be large, so that "genetic drift" or accidents that happen to a small number of individuals won't affect the allele frequencies in the population.

2.  There has to be no "gene flow" (formerly known as migration).  Gene flow introduces new alleles into a population.  The implication here is that this population is either very isolated, or it is the only population of this particular species.

3.  The population must be well-adapted to the environment, with none of the extant alleles giving a reproductive advantage or disadvantage.  With allele sets not contributing to differential reproductive success, "natural selection" will not change allele frequencies within the population.

4.  Mutations must not be occurring or must be completely "silent."  (Yeah, like that's going to happen).