Select the odd one w.r.t. sexual spore in fungi?

Options

A. Oospores
B. Oidia
C. Basidiospores
D. Ascospores

Answer

To solve the question of selecting the odd one with respect to sexual spores in fungi, we will analyze the given options one by one.

### Step 1: Identify the types of spores mentioned
We have four types of spores mentioned:
1. Oospores
2. Uidia
3. Basidiospores
4. Ascospores

### Step 2: Define each type of spore
- **Oospores**: These are sexual spores formed from the fusion of male and female gametes. They are typically found in certain fungi and are involved in sexual reproduction.

- **Uidia**: These are asexual spores that arise from the fragmentation of hyphae in fungi. They do not involve sexual reproduction and are considered a means of asexual reproduction.

- **Basidiospores**: These are sexual spores produced by Basidiomycetes. They are formed on a structure called a basidium and are involved in sexual reproduction.

- **Ascospores**: These are also sexual spores produced by Ascomycetes. They are formed within a sac-like structure called an ascus and are involved in sexual reproduction.

### Step 3: Determine which spore is the odd one out
From the definitions:
- Oospores, Basidiospores, and Ascospores are all involved in sexual reproduction.
- Uidia, on the other hand, is an asexual spore and does not participate in sexual reproduction.

### Conclusion
The odd one out with respect to sexual spores in fungi is **Uidia**.

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