Which one of the following combination of characters is correct for the given fungal group ?

Options

A. Algal fungi : Coenocytic, cellulosic wall, zoospore, zygospore, dikaryophase present
B. Conjugating fungi : Septate mycellium, chitinous wall, sporangiospore, shorter (n+n) phase
C. Sac fungi : Septate mycellium, Ascogonium, Crozier stage, meiospores as ascosspores shorter dikaryophase
D. Club fungi : Shorter primary mycellium stage, No sex organs, dominant dikaryophase zygosporic meiosis

Answer

To determine the correct combination of characters for the given fungal groups, we will analyze each option step by step.

### Step-by-Step Solution:

1. **Identify Algal Fungi (Phycomycetes)**:
- Algal fungi are classified as phycomycetes.
- They are characterized by:
- Coenocytic (aseptate) hyphae.
- Cellulosic cell wall.
- Absence of dikaryotic phase (no fusion of mycelium).
- **Conclusion**: This option is incorrect because it mentions the dikaryotic phase, which is not present in algal fungi.

2. **Identify Conjugating Fungi (Zygomycetes)**:
- Conjugating fungi are known as zygomycetes.
- Their characteristics include:
- Coenocytic mycelium.
- Chitinous cell wall.
- Production of sporangiospores.
- Absence of dikaryotic phase.
- **Conclusion**: This option is also incorrect because it mentions the dikaryotic phase, which is not present in zygomycetes.

3. **Identify Sac Fungi (Ascomycetes)**:
- Sac fungi are referred to as ascomycetes.
- Their characteristics include:
- Septate mycelium (divided by septa).
- Presence of ascospores.
- Presence of dikaryotic phase.
- **Conclusion**: This option is correct as it accurately describes the features of sac fungi.

4. **Identify Club Fungi (Basidiomycetes)**:
- Club fungi are known as basidiomycetes.
- Their characteristics include:
- Presence of primary mycelium stage.
- Typically, they do not have a shorter primary mycelium stage.
- **Conclusion**: This option is incorrect because it inaccurately states the presence of a shorter primary mycelium stage.

### Final Answer:
The correct combination of characters is for the **third option**: Sac fungi (Ascomycetes).

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