Zygospore of Spirogyra is
(a) Multilayered
(b) Three layered
(c) Two layered
(d) One layered

Options

A. Multilayered
B. Three layered
C. Two layered
D. One layered.

Answer

To solve the question regarding the structure of the zygospore of Spirogyra, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Zygospore Formation**:
- Zygospores are formed during sexual reproduction in Spirogyra, which is a filamentous green algae.

2. **Identifying the Layers**:
- The zygospore is known to have a specific structure. It is important to determine how many layers it consists of.

3. **Researching Zygospore Characteristics**:
- The zygospore of Spirogyra is typically described in scientific literature. It is noted for its distinctive color and structure.

4. **Determining the Correct Option**:
- According to the information, the zygospore of Spirogyra is characterized as being three-layered. This is a key feature that distinguishes it from zygospores of other organisms.

5. **Final Answer**:
- Therefore, the correct answer to the question "Zygospore of Spirogyra is" is (b) three layered.