Select the incorret statemet.

Options

A. Frequency of certain genes in a population change over severl genertaions resulting in evolution .
B. Reduction in weight of the organsim due to starvation is generatically controlled
C. Low wieght parents can have heavy wieght progeny
D. Traits which are not inherited over generations do not cause evolution

Explanation

To solve the question of selecting the incorrect statement from the given options, we can follow these steps:

### Step-by-Step Solution:

1. **Analyze Statement A**:
- The statement claims that the frequency of certain genes in a population changes over several generations, resulting in evolution.
- This is a correct statement as it aligns with the principles of evolution, where gene frequency changes can lead to the development of new species.

2. **Analyze Statement B**:
- This statement suggests that the reduction in weight of an organism due to starvation is genetically controlled.
- This is incorrect because weight reduction due to starvation is influenced by external factors (like food availability) and is not a hereditary trait. Therefore, this statement is the incorrect one.

3. **Analyze Statement C**:
- The statement indicates that low weight parents can have heavy weight progeny.
- This is true, as weight can vary due to environmental factors and is not strictly determined by genetics.

4. **Analyze Statement D**:
- This statement asserts that traits which are not inherited over generations do not cause evolution.
- This is also correct because if traits are not passed down, they cannot contribute to evolutionary changes.

5. **Conclusion**:
- After analyzing all statements, we conclude that Statement B is the incorrect one.

### Final Answer:
The incorrect statement is **Statement B**: "The reduction in weight of the organism due to starvation is genetically controlled."

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