Type of Selection Effect A. Stabilizing Selection 1. Favors intermediate traits B. Directional Selection 2. Favors one extreme phenotype C. Disruptive Selection 3. Maintains multiple alleles in the population D. Balancing Selection 4. Favors both extreme phenotypes

Step-by-step solution

Stabilizing Selection favors intermediate traits, reducing variation. Directional Selection favors one extreme phenotype, shifting the population's traits in one direction. Disruptive Selection favors both extreme phenotypes, leading to increased variation. Balancing Selection maintains multiple alleles in the population, often due to heterozygote advantage.