In papaya male and female flowers are present on different plants it permits

Options

A. autogamy
B. geitonogamy
C. btoh autogamy and geitonogamy
D. xenogamy

Answer

**Step-by-Step Solution:**

1. **Understanding Flower Types in Papaya:**
- In papaya plants, male and female flowers are found on separate plants. This is a key characteristic of dioecious plants, where individual plants are either male or female.

2. **Defining Autogamy:**
- Autogamy refers to self-pollination, where pollen from the anther of a flower fertilizes the stigma of the same flower. Since papaya has male and female flowers on different plants, autogamy is not possible.

3. **Defining Genitogamy:**
- Genitogamy is a form of pollination where pollen is transferred from the anther of one flower to the stigma of another flower on the same plant. Again, since male and female flowers are on different plants in papaya, genitogamy is also not possible.

4. **Defining Xenogamy:**
- Xenogamy refers to cross-pollination, where pollen is transferred from the anther of one plant to the stigma of a flower on a different plant (which can be of the same species). In papaya, since male and female flowers are on different plants, xenogamy is permitted and is the only type of pollination that can occur.

5. **Conclusion:**
- Given that autogamy and genitogamy are both prevented in papaya due to the separation of male and female flowers, the only viable option is xenogamy. Therefore, the correct answer is xenogamy.

**Final Answer:**
- In papaya, the presence of male and female flowers on different plants permits xenogamy.

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