Select correct statement w.r.t. the release of pollen grains in cereals

Options

A. After single mitosis in microspore
B. At 3 celled stage
C. At 2 celled stage
D. More than one option is correct

Answer

To answer the question regarding the release of pollen grains in cereals, we will analyze the information provided and identify the correct statement.

### Step-by-Step Solution:

1. **Understanding Pollen Grain Structure**:
- In flowering plants, pollen grains typically consist of two cells: the vegetative cell and the generative cell. The vegetative cell is larger and contains abundant reserve food, while the generative cell is spindle-shaped.

**Hint**: Remember the structure of pollen grains in general flowering plants.

2. **Pollen Release in Non-Cereal Plants**:
- In many non-cereal plants, pollen grains are shed at the two-celled stage, meaning they release the pollen before the generative cell divides.

**Hint**: Consider how pollen release differs in non-cereal plants compared to cereals.

3. **Pollen Release in Cereals**:
- In cereal plants (like wheat), the generative cell undergoes mitosis before the pollen is shed. This division results in two male gametes, which means that the pollen grains are released at the three-celled stage (one vegetative cell and two male gametes).

**Hint**: Focus on the unique process of pollen grain development in cereal plants.

4. **Evaluating the Options**:
- Option 1: "After single mitosis in microspore" - Incorrect, as cereals release pollen at the three-celled stage.
- Option 2: "At the 3 cell stage" - Correct, as this is the stage at which pollen grains are released in cereals.
- Option 3: "At the 2 cell stage" - Incorrect, as this is the stage for non-cereal plants.
- Option 4: "More than one option is correct" - Incorrect, as only one option is correct.

5. **Conclusion**:
- The correct statement regarding the release of pollen grains in cereals is that they are released at the three-celled stage.

### Final Answer:
The correct statement regarding the release of pollen grains in cereals is: **"At the 3 cell stage."**