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 with its property, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Classification of Fungi**:
- Fungi are classified into different groups based on their reproductive structures and methods. The main groups include:
- Phycomycetes (e.g., Mucor)
- Ascomycetes (e.g., Penicillium, Yeast)
- Basidiomycetes (e.g., Agaricus, commonly known as mushrooms)
- Deuteromycetes (e.g., Alternaria)

2. **Analyze Each Pair**:
- **Option A**: Mucor - Asexual spores are sporangiospores.
- This is correct as Mucor belongs to Phycomycetes and reproduces asexually through sporangiospores.

- **Option B**: Penicillium - Asexual reproduction occurs via conidia.
- This is also correct as Penicillium is an Ascomycete and reproduces asexually through conidia.

- **Option C**: Agaricus - Asexual reproduction is absent.
- This is incorrect. Agaricus is a Basidiomycete (club fungus) and while it primarily reproduces sexually, it can also reproduce asexually through various means (e.g., fragmentation).

- **Option D**: Alternaria - Only asexual reproduction occurs.
- This is correct as Alternaria is a Deuteromycete and does not have a known sexual stage, thus it reproduces asexually.

3. **Identify the Incorrect Pair**:
- From the analysis, the incorrect pairing is found in **Option C** where it states that Agaricus has no asexual reproduction. This is false as Agaricus can reproduce asexually.

### Final Answer:
The incorrect pair is **Option C: Agaricus - Asexual reproduction is absent**.