The aperture present in pollen grain is called germ pore where

Options

A. Exine is present
B. Both exine and intine are absent
C. Only exine is absent
D. Only intine is absent

Answer

To solve the question regarding the aperture present in pollen grain called the germ pore, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Pollen Grain Structure**:
- Pollen grains are generally spherical structures that have two main layers: the outer layer called the Exine and the inner layer called the Entine.

2. **Composition of Exine**:
- The Exine is composed of a highly resistant organic material known as Sporopollenin, which provides protection to the pollen grain.

3. **Identification of Germ Pore**:
- The germ pore is a specialized aperture in the pollen grain where the Exine is absent. This allows for the germination of the pollen grain.

4. **Presence of Entine**:
- At the germ pore, the inner layer (Entine) remains present while the outer layer (Exine) is absent.

5. **Conclusion**:
- Therefore, the correct answer to the question is that the germ pore is the area where only the Entine is present, and the Exine is absent.

### Final Answer:
The aperture present in the pollen grain called germ pore is where only the Entine is present and the Exine is absent.

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