What is the function of germ pore?

Options

A. Initiation of pollen tube
B. Release of male gametes
C. Emergence of radicle
D. Absorption of water for seed germination

Answer

**Step-by-Step Solution:**

1. **Understanding Germ Pore**:
- A germ pore is defined as a small opening located in the outer wall of a spore, specifically found in pollen grains.

2. **Location of Germ Pore**:
- Germ pores can be positioned in different ways; they can be apical (at the tip) or eccentric (off-center) in their location.

3. **Function of Germ Pore**:
- The primary function of the germ pore is to facilitate the growth of the pollen tube during the process of germination.

4. **Pollen Tube Development**:
- Upon germination, the pollen tube emerges from the germ pore. This tube is essential for the delivery of male gametes to the ovule for fertilization.

5. **Conclusion**:
- Based on the understanding of the germ pore and its role in the initiation of the pollen tube, we can conclude that the correct answer to the question is option A: "initiation of pollen tube."

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