Given below are statements regarding mutational breeding. Choose the wrong statement.
I. It involves changing the type of plant through mutations.
II. It can be done only on somatic cells.
III. Both physical mutagens (radiations) or chemical mutagens
IV. Sonora-64 is an example of mutational breeding in India.

Options

A. I and II
B. I, II and IV
C. Only II
D. III and IV

Answer

To solve the question regarding mutational breeding and identify the wrong statement, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Concept of Mutational Breeding:**
- Mutational breeding involves the use of mutations to create genetic variability in plants. This is achieved by altering the genetic material of the plants.

2. **Analyze Each Statement:**
- **Statement I:** "It involves changing the type of plant through mutations."
- This statement is misleading. While mutational breeding does induce mutations, it does not necessarily change the type of plant; rather, it alters specific traits or characteristics within the same species.

- **Statement II:** "It can be done only on somatic cells."
- This statement is incorrect. Mutational breeding can be performed on both somatic cells and germ cells. Therefore, this statement is wrong.

- **Statement III:** "Both physical mutagens (radiations) or chemical mutagens."
- This statement is correct. Mutational breeding utilizes both physical mutagens (like radiation) and chemical mutagens to induce mutations.

- **Statement IV:** "Sonora-64 is an example of mutational breeding in India."
- This statement is also correct. Sonora-64 is indeed a variety of wheat developed through mutational breeding techniques.

3. **Identify the Wrong Statement:**
- From the analysis, Statement II is the wrong statement because mutational breeding can be performed on both somatic and germ cells, not just somatic cells.

### Final Answer:
The wrong statement regarding mutational breeding is **Statement II: "It can be done only on somatic cells."**

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