Geitonogamy is functionally similar to X = ..... .... Whereas it is genetically similar to Y = ......... .

Options

A. X = Autogamy, Y = Cross pollination
B. X = Cross pollination, Y = Autogamy
C. X=Xenogamy, Y = Autogamy at:
D. X = Autogamy, Y = Autogamy

Explanation

To solve the question regarding Geitonogamy, we need to understand the definitions and relationships between Geitonogamy, autogamy, and cross-pollination.

### Step-by-Step Solution:

1. **Define Geitonogamy**:
- Geitonogamy is a type of pollination where pollen from one flower fertilizes another flower on the same plant. This means that the pollen comes from a different flower, but still from the same genetic source.

2. **Functionally Similar Aspect**:
- To determine what Geitonogamy is functionally similar to, we need to consider the process of pollination. Geitonogamy involves the transfer of pollen, similar to cross-pollination, which is the transfer of pollen from one plant to another.
- Therefore, functionally, Geitonogamy is similar to **cross-pollination**.

3. **Genetically Similar Aspect**:
- Next, we analyze what Geitonogamy is genetically similar to. Since Geitonogamy involves pollen from flowers of the same plant, it is genetically similar to autogamy, where pollen fertilizes the ovule of the same flower or another flower on the same plant.
- Thus, genetically, Geitonogamy is similar to **autogamy**.

4. **Final Answer**:
- Combining these findings, we conclude that Geitonogamy is functionally similar to **cross-pollination** (X) and genetically similar to **autogamy** (Y).

### Conclusion:
- The answer to the question is:
- X = cross-pollination
- Y = autogamy