The following options have a property of a fungus paired with its example . Which of these is an incorrect pair ?

Options

A. Sporangiospores - Mucor
B. Conidia - Penicillium
C. Asexual reproduction is absent - Agaricus
D. Only by asexual reproduction - Alternaria

Answer

To solve the question regarding the incorrect pairing of a fungus property with its example, we will analyze each option provided in the question step by step.

### Step-by-Step Solution:

1. **Identify the First Option: Sporangiospores and Mucor**
- **Explanation**: Sporangiospores are a type of asexual spores produced inside sporangia. Mucor, a member of the phylum Zygomycota (or phycomycetes), produces sporangiospores.
- **Conclusion**: This pairing is correct.

2. **Identify the Second Option: Conidia and Penicillium**
- **Explanation**: Conidia are asexual spores produced exogenously on specialized hyphae called conidiophores. Penicillium, which belongs to the phylum Ascomycota (or Escomycetes), produces conidia.
- **Conclusion**: This pairing is also correct.

3. **Identify the Third Option: Asexual Reproduction is Absent in Agaricus**
- **Explanation**: Agaricus is a genus of mushrooms that belongs to the phylum Basidiomycota. While it is true that Basidiomycetes typically reproduce sexually, they can also reproduce asexually through vegetative means such as fragmentation.
- **Conclusion**: This statement is incorrect because asexual reproduction is present in Agaricus.

4. **Identify the Fourth Option: Asexual Reproduction in Alternaria**
- **Explanation**: Alternaria is a genus of fungi that belongs to the Deuteromycetes (fungi imperfecti). This group is characterized by the absence of sexual reproduction, and they reproduce asexually through conidia.
- **Conclusion**: This pairing is correct.

### Final Answer:
The incorrect pair is **Option 3: Asexual reproduction is absent in Agaricus**.