Which of the following statements is incorrect?

Options

A. Morels and truffles are ediblc delicacies.
B. Claviceps is a source of many alkaloids and LSD
C. Conidia are produced exogenously and ascospores endogenously
D. Yeasts have filamentous bodies with long thread-like hyphae.

Answer

To determine which statement is incorrect, we will evaluate each of the four statements provided:

1. **Statement 1**: Morals and truffles are edible and delicacies.
- This statement is correct. Morals (morels) and truffles are indeed edible fungi that belong to the class Ascomycetes, which are often considered delicacies.

2. **Statement 2**: Clevisseps is a source of many alkaloids and LSD.
- This statement is also correct. Clevisseps, which is a member of the Ascomycetes class, is known to produce various alkaloids, including ergotamine, which is used in medicine.

3. **Statement 3**: Conidia are produced exogenously and ascospores are produced endogenously.
- This statement is correct. In Ascomycetes, conidia (asexual spores) are produced externally (exogenously), while ascospores (sexual spores) are produced internally (endogenously) within sac-like structures called asci.

4. **Statement 4**: Yeast has filamentous bodies with long thread-like hyphae.
- This statement is incorrect. Yeast is primarily unicellular and does not have filamentous structures with long hyphae. While some fungi can form filamentous structures, yeast itself does not.

Based on the evaluation, the incorrect statement is **Statement 4**.

### Summary of the Solution:
- Statement 1: Correct
- Statement 2: Correct
- Statement 3: Correct
- Statement 4: Incorrect (Yeast is unicellular and does not have filamentous bodies)

### Final Answer:
The incorrect statement is **Statement 4**.