Question:
Which one of the following evidences does not support Darwin's theory of natural selection ?
Which one of the following evidences does not support Darwin's theory of natural selection ?
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Mutation as the source of new traits is de Vries's idea. Darwin spoke of small, gradual variations.
Updated On: Oct 22, 2026
- Branching Descent
- Small & directional variations
- Appearance of new traits by mutations
- Survival of the fittest
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept:
Darwin said that evolution happens by natural selection. Small, continuous, heritable variations arise in a population.
Nature selects those that suit the environment, so they survive and leave more offspring.
Step 2: What Darwin proposed:
Branching descent: all species arise from a common ancestor and branch out. This is part of his theory.
Small and directional variations: Darwin believed variations were small and gradual. This supports his theory.
Survival of the fittest: the fitter individuals survive and reproduce more. This is the core of his idea.
Step 3: The odd one out:
Mutations are sudden, large and random changes. This idea came from Hugo de Vries, not from Darwin.
So (C) does not support Darwin's theory.
Final Answer:
The option that does not support Darwin's theory is (C), appearance of new traits by mutations.
Darwin said that evolution happens by natural selection. Small, continuous, heritable variations arise in a population.
Nature selects those that suit the environment, so they survive and leave more offspring.
Step 2: What Darwin proposed:
Branching descent: all species arise from a common ancestor and branch out. This is part of his theory.
Small and directional variations: Darwin believed variations were small and gradual. This supports his theory.
Survival of the fittest: the fitter individuals survive and reproduce more. This is the core of his idea.
Step 3: The odd one out:
Mutations are sudden, large and random changes. This idea came from Hugo de Vries, not from Darwin.
So (C) does not support Darwin's theory.
Final Answer:
The option that does not support Darwin's theory is (C), appearance of new traits by mutations.
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