Pollen grains after dispersed from the anthers are carried to the stigma of a pistil. This is termed as?

Options

A. Retting
B. Gaudikov effect
C. fertilization
D. Pollination

Answer

### Step-by-Step Solution:

1. **Understanding the Process**: The question describes a biological process where pollen grains are transferred from one part of a flower to another. This is a crucial step in the reproduction of flowering plants.

2. **Identifying Key Terms**:
- **Anthers**: The part of the stamen (male reproductive organ) where pollen grains are produced.
- **Stigma**: The part of the pistil (female reproductive organ) that receives pollen grains.

3. **Defining the Process**: The act of transferring pollen grains from the anther to the stigma is specifically known as "pollination."

4. **Evaluating Other Options**:
- **Retting**: This is a process involving the breakdown of plant materials by microorganisms, unrelated to pollen transfer.
- **Gordyckoff Effect**: This refers to a phenomenon related to the color change of red algae in water, not relevant to pollen transfer.
- **Fertilization**: This is the process that occurs after pollination, where the male and female gametes fuse, but it is not the act of transferring pollen.

5. **Conclusion**: The correct term for the process of pollen grains being carried to the stigma is "pollination."

### Final Answer:
The correct term is **pollination**.

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