Which point of difference between Geitonogamy and Xenogamy is incorrect ?

Options

A. `{:("Geitonogamy","Xenogamy"),("It is self - pollination","It is cross pollination"):}`
B. `{:("Xenogamy","Geitonogamy"),("It produces fewer variations","If produces a lot of variations."):}`
C. `{:("Geitonogamy","Xenogamy"),(" It occurs between two flowers of same plant ","It occurs between two flowers of different Plants "):}`
D. `{:("Geitonogamy","Xenogamy"),("Pollination occurs between genetically genetically dissimilar plants ","Pollination occurs between morphologically genetically dissimilar plants"):}`

Answer

To solve the question regarding the incorrect point of difference between Geitonogamy and Xenogamy, let's break down the definitions and characteristics of each type of pollination.

### Step-by-Step Solution:

1. **Understanding Geitonogamy**:
- Geitonogamy is a type of pollination where pollen grains are transferred from the anther of one flower to the stigma of another flower on the **same plant**.
- This process is a form of self-pollination, as it involves flowers of the same genetic makeup.

2. **Understanding Xenogamy**:
- Xenogamy refers to the transfer of pollen grains from the anther of a flower to the stigma of a flower on a **different plant**.
- This is a form of cross-pollination, which involves genetic material from different plants, leading to greater genetic variation.

3. **Analyzing the Options**:
- **Option 1**: States that Geitonogamy is self-pollination and Xenogamy is cross-pollination. This is **correct**.
- **Option 2**: Claims that Xenogamy produces fewer variations and Geitonogamy produces lots of variations. This is **incorrect** because Xenogamy typically produces more variations due to genetic diversity.
- **Option 3**: States that Geitonogamy occurs between two flowers of the same plant and Xenogamy occurs between two flowers of different plants. This is **correct**.
- **Option 4**: Claims that Geitonogamy is between two plants of morphological and genetic dissimilarity. This is **incorrect** because Geitonogamy involves the same plant, not different ones.

4. **Conclusion**:
- The incorrect point of difference is found in **Option 2** and **Option 4**. However, since the question asks for a single incorrect point, **Option 2** is the most misleading as it misrepresents the nature of variations produced by each type of pollination.

### Final Answer:
The incorrect point of difference between Geitonogamy and Xenogamy is found in **Option 2**: "Xenogamy produces fewer variations and Geitonogamy produces lots of variations."