🧬ap biology review

Founder Effect

Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examWritten by the Fiveable Content Team • Last updated September 2025

Definition

The founder effect is a type of genetic drift that occurs when a small group of individuals becomes isolated from the larger population, leading to changes in the gene pool.

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