- A Loss of alleles when a small group colonizes a new area (low genetic diversity from few founders)
- B Natural selection acting consistently across very large, stable population groups over time
- C Gene flow occurring freely and continuously between two well-mixed populations nearby
- D Sustained inbreeding occurring gradually within long-established, large populations
Correct answer: A. Loss of alleles when a small group colonizes a new area (low genetic diversity from few founders)
Explanation: Founder effect: a new population established by a small number of individuals has reduced genetic diversity. Certain allele frequencies can be very different from the source population.
Concept context
Mendel's laws, inheritance patterns, DNA structure, and molecular biology. Core of NEET biology.
Read the full Principles of Inheritance and Variation notes →