Which of the following observations would support the claim that a particular
mutation is neutral?
The frequency of the mutation in a population, once it first appears, tends
to increase over time.
In a given population, individuals that possess this mutation have a
greater rate of reproduction.
The mutation is higher in populations of organisms that produce fewer
offspring and have shorter life spans.
The frequency of the mutation goes up and down, with no observable
effect on the health of a population.