I. Mycelium is branched and septate
II. No asexual spores are generally formed
III. Vegetative reproduction by fragmentation is common
IV. Sex organs are absent but sexual reproduction takes place by somatogamy
V. Karyogamy and meiosis occur in basidium to form haploid exogenous 4 basidiospores
VI. Basidia are arranged in basidiocarp.
The above characters are assigned to-

Options

A. Sac fungi
B. Club fungi
C. Algal fungi
D. Fungi imperfecti

Answer

To determine which group of fungi the given characteristics belong to, we can analyze each statement step by step.

### Step-by-Step Solution:

1. **Analyze the Mycelium Structure:**
- The first statement mentions that "Mycelium is branched and septate." This indicates that the mycelium has cross-walls (septa) and is branched. This is a characteristic of certain fungi, particularly those in the group known as Basidiomycetes (club fungi).

2. **Asexual Spores:**
- The second statement states, "No asexual spores are generally formed." This suggests that the organism primarily reproduces sexually rather than asexually. Basidiomycetes typically do not produce asexual spores.

3. **Vegetative Reproduction:**
- The third statement indicates that "Vegetative reproduction by fragmentation is common." Fragmentation is a common method of vegetative reproduction in many fungi, including Basidiomycetes.

4. **Sexual Reproduction:**
- The fourth statement mentions that "Sex organs are absent but sexual reproduction takes place by somatogamy." In Basidiomycetes, sexual reproduction occurs through the fusion of compatible hyphae (somatogamy), leading to the formation of a dikaryotic stage.

5. **Karyogamy and Meiosis:**
- The fifth statement explains that "Karyogamy and meiosis occur in basidium to form haploid exogenous 4 basidiospores." This is a defining feature of Basidiomycetes, where the basidium is the structure that produces basidiospores through meiosis.

6. **Arrangement of Basidia:**
- The sixth statement states, "Basidia are arranged in basidiocarp." This is characteristic of Basidiomycetes, where the basidia are found in a fruiting body known as the basidiocarp (mushroom).

### Conclusion:
Based on the analysis of all the statements, the characteristics described are indicative of **Basidiomycetes**, also known as **club fungi**.

### Final Answer:
The above characters are assigned to **Basidiomycetes (Club Fungi)**.

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