To be successful in evolution, a mutation must occur in

Options

A. Plasma proteins
B. Somatopalsmic DNA
C. Germpalsm's DNA
D. RNA

Answer

To determine where a mutation must occur to be successful in evolution, we need to analyze the options provided and understand the significance of each type of DNA involved in the process of evolution.

### Step-by-Step Solution:

1. **Understanding the Types of DNA**:
- **Plasma Protein**: This refers to proteins found in the plasma, not directly related to genetic mutations.
- **Somatoplasmic DNA**: This refers to the DNA found in somatic (body) cells, which do not contribute to the next generation.
- **Germplasmic DNA**: This is the DNA found in germ cells (sperm and eggs) that can be passed on to offspring.
- **RNA**: While RNA is essential for protein synthesis, it does not carry genetic information in the same way DNA does.

2. **Identifying the Relevant Mutation**:
- For a mutation to affect evolution, it must be heritable, meaning it should be passed from one generation to the next.
- Only mutations that occur in germ cells (germline mutations) can be inherited by offspring.

3. **Conclusion**:
- Therefore, for a mutation to be successful in evolution, it must occur in **germplasmic DNA**. This is because germline mutations are the only mutations that can be transmitted to the next generation, allowing for evolutionary changes to take place.

4. **Final Answer**:
- The correct answer is **C. Germplasmic DNA**.