False Statement on Random Genetic Drift
Which is not true about Random genetic drift-
- It is a systemic force to change gene frequency — Correct Answer
- It is also known as Sewall Wright effect
- It is only predicted in amount, not in direction
- All the above
Explanation:
Correct Answer (NOT TRUE): It is a systemic force to change gene frequency
This statement is FALSE. Random genetic drift is explicitly classified as a dispersive force, NOT a systemic force. Systemic forces are directional and predictable; drift is random and unpredictable in direction.
True Facts About Random Genetic Drift
| Statement | True or False? |
|---|---|
| It is a systemic force | FALSE — it is a DISPERSIVE force |
| Also known as Sewall Wright effect | TRUE |
| Only predicted in amount, not in direction | TRUE |
| Acts only in small populations | TRUE |
| Can randomly fix or eliminate alleles | TRUE |
Systemic vs Dispersive — Key Distinction
- Systemic: Mutation, Migration, Selection — act in all populations; predictable in amount AND direction
- Dispersive: Genetic Drift — acts only in small populations; predictable only in amount (variance), NOT in direction
📚 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.
