Write True/False:
Dioecious condition prevent autogamy and geitonogamy

Answer

To determine whether the statement "Dioecious condition prevents autogamy and geitonogamy" is true or false, we need to understand the definitions of autogamy, geitonogamy, and dioecious plants.

### Step-by-Step Solution:

1. **Define Autogamy**:
- Autogamy refers to the transfer of pollen from the anther to the stigma of the same flower. This means that the fertilization occurs within the same flower.

2. **Define Geitonogamy**:
- Geitonogamy involves the transfer of pollen from the anther of one flower to the stigma of another flower on the same plant. This means that while the flowers are different, they belong to the same individual plant.

3. **Define Dioecious Plants**:
- Dioecious plants are those that have male and female reproductive structures on separate individual plants. This means that one plant will produce only male flowers (with anthers), and another separate plant will produce only female flowers (with stigmas).

4. **Analyze the Statement**:
- Since dioecious plants have male and female flowers on different plants, autogamy cannot occur because there is no single flower that has both male and female parts.
- Additionally, geitonogamy cannot occur either, as geitonogamy requires the pollen to travel from one flower to another flower on the same plant, which is not possible in dioecious plants since they are on different plants.

5. **Conclusion**:
- Therefore, the statement "Dioecious condition prevents autogamy and geitonogamy" is true.

### Final Answer:
**True**