Choose the wrong statement :

Options

A. Morels and truffles are poisonous mushrooms.
B. Yeast is unicellular and useful in fermentation
C. Penicillium is multicellular and produces antibiotics,
D. Neurospora is used in the study of biochemical genetics.

Explanation

### Step-by-Step Solution:

1. **Identify the Statements**: We need to evaluate the given statements about mushrooms, yeast, Penicillium, and Neurospora to determine which one is incorrect.

2. **Evaluate the First Statement**: The first statement claims that "Morris and truffles are poisonous mushrooms." This statement needs to be assessed for its accuracy.

3. **Research Morris and Truffles**:
- Morris (likely referring to Morchella, or morels) and truffles are types of mushrooms.
- Both of these types of mushrooms are known to be edible and are not poisonous.

4. **Conclusion for the First Statement**: Since both Morris and truffles are edible and not poisonous, the first statement is incorrect.

5. **Evaluate the Second Statement**: The second statement states that "yeast is unicellular and used in fermentation."
- Yeast is indeed a unicellular organism and is widely used in fermentation processes, such as in baking and alcohol production. This statement is correct.

6. **Evaluate the Third Statement**: The third statement claims that "Penicillium is multicellular and produces antibiotics."
- Penicillium is a genus of fungi that is multicellular and is well-known for producing the antibiotic penicillin. This statement is also correct.

7. **Evaluate the Fourth Statement**: The fourth statement says "Neurospora is used in the study of biochemical genetics."
- Neurospora is a genus of fungi that is commonly used in genetic studies due to its simple genetic makeup and short life cycle. This statement is correct as well.

8. **Final Conclusion**: The only incorrect statement among the options provided is the first one regarding Morris and truffles being poisonous. Therefore, the answer to the question is option 1.