Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
Variation refers to the differences and diversity that exist within a population, specifically in terms of traits or characteristics. It is the degree to which individuals within a population differ from one another.
Heritability refers to the extent to which genetic factors contribute to the observed variation in a particular trait within a population.
Genetic Diversity: Genetic diversity refers to the range of genetic material present in a population. It encompasses both visible (phenotypic) traits as well as hidden (genotypic) genetic variations.
Polygenic Inheritance: Polygenic inheritance is when multiple genes contribute to the expression of a particular trait. This can lead to greater variation within a population due to the combined effects of multiple genes.