Operating Environment for Systemic Forces
Systemic processes/forces operate in-
- Small population
- Large population
- Both — Correct Answer
- None
Explanation:
Correct Answer: Both
Systemic forces (Mutation, Migration, Selection) are directional and operate consistently in both large and small populations. Their effects are predictable in both amount and direction regardless of population size.
Systemic vs Dispersive Forces
| Feature | Systemic Forces | Dispersive Forces |
|---|---|---|
| Examples | Mutation, Migration, Selection | Random Genetic Drift (Sewall Wright effect) |
| Population size | Both large AND small populations | Only significant in small populations |
| Directional? | Yes — predictable direction | No — random, unpredictable direction |
| Predictability | Amount AND direction both predictable | Amount predictable (variance); direction NOT predictable |
Key Memory Point
- Systemic = works in ALL populations (large and small)
- Dispersive = only significantly affects SMALL populations (random sampling error is negligible in large populations)
📚 About this Topic — Animal Genetics & Breeding
This multiple choice question is from Animal Genetics & Breeding, Animal Refresher. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Genetics & Breeding to strengthen your preparation.
