Question

The frequency distribution of heritable traits can be altered by natural selection in the following ways except:

• A. Directional Selection
• B. Balancing Selection
• C. Non-Directional Selection
• D. Random Selection

Hint:

Natural Selection is NEVER random; it is the “Survival of the Fittest.”

Answer 1

The Correct Option is D

Step 1: Concept
Natural selection is a non-random process resulting in differential survival based on phenotype.

Step 2: Meaning
Selection acts on traits to change their frequency in specific observable patterns.

Step 3: Analysis
Directional, Balancing (Stabilizing), and Disruptive (Non-Directional) selections are all modes of natural selection. Random selection refers to stochastic processes like genetic drift, which are fundamentally different from fitness-driven natural selection.

Step 4: Conclusion
Random selection is the exception as it is not a mode of natural selection.

Final Answer: (D)