Which of the following might we expect to INCREASE diversity within a population?I. Positive SelectionII. Negative SelectionIII. Balancing Selection

The three types of selection mentioned - Positive, Negative, and Balancing - all have different impacts on the genetic diversity of a population.

I. Positive Selection: This type of selection favors a specific trait or traits, leading to an increase in the frequency of those traits in the population over time. While this can lead to rapid adaptation, it can also decrease genetic diversity by reducing the frequency of other traits.

II. Negative Selection: Also known as purifying selection, this type of selection works to remove harmful mutations from a population. Like positive selection, this can also decrease genetic diversity over time.

III. Balancing Selection: This type of selection maintains diversity in a population by favoring genetic diversity. It can occur in a few different ways, such as heterozygote advantage (where individuals with two different alleles for a trait have an advantage) or frequency-dependent selection (where the fitness of a phenotype depends on its frequency relative to other phenotypes in a population).

So, out of the three types of selection mentioned, we might expect Balancing Selection to increase diversity within a population.