All members of fungi imperfecti (Deuteromycetes) group lack

Options

A. sexual reproduction
B. spores
C. sexual reproduction
D. hyphae

Answer

**Step-by-Step Solution:**

1. **Understanding Fungi Imperfecti (Deuteromycetes):**
- Fungi imperfecti, also known as Deuteromycetes, are a group of fungi that do not have a known sexual reproduction stage in their life cycle.

2. **Identifying Key Characteristics:**
- The defining characteristic of this group is the absence of sexual reproductive structures. In fungi, sexual reproduction typically involves the formation of specialized spores.

3. **Lack of Sexual Reproduction:**
- In the case of Deuteromycetes, they lack the structures necessary for sexual reproduction. This means they do not produce sexual spores, which are essential for the process of sexual reproduction.

4. **Absence of Conidia:**
- Specifically, the spores that are absent in fungi imperfecti are known as conidia. Conidia are a type of asexual spore that can be produced by some fungi, but in the case of Deuteromycetes, they do not exhibit the structures or processes to form these spores.

5. **Conclusion:**
- Therefore, the correct answer to the question is that all members of fungi imperfecti (Deuteromycetes) lack sexual reproduction.

**Final Answer:** All members of fungi imperfecti (Deuteromycetes) lack sexual reproduction.

---