Which one can reverse the harmful effect of previous mutation?

Options

A. Intergenic mutation
B. Interagenic mutation
C. Supepressor mutation
D. Indirect suppression.

Answer

To determine which type of mutation can reverse the harmful effects of a previous mutation, we need to analyze the given options: intergenic mutation, intragenic mutation, superpressure mutation, and indirect suppression.

1. **Understanding the Types of Mutations**:
- **Intergenic Mutation**: This occurs in a different gene from where the original mutation took place. It does not reverse the original mutation's effects but may compensate for them.
- **Intragenic Mutation**: This occurs within the same gene as the original mutation. It can potentially reverse the effects of the original mutation if it restores the original function.
- **Superpressure Mutation**: This is a specific type of mutation that can nullify the effects of an earlier mutation, effectively reversing its harmful effects.
- **Indirect Suppression**: This occurs at a different site in the genome and does not directly reverse the original mutation but may compensate for its effects.

2. **Identifying the Correct Answer**:
- Among the options, **Superpressure Mutation** is the one that specifically reverses the effects of a previous mutation. It acts to nullify the impact of the original mutation, making it the correct choice.

3. **Conclusion**:
- The correct answer is **Superpressure Mutation** as it can reverse the harmful effects of a previous mutation.