A dicotyledonous plant bears flowers but never produces fruits and seeds. The most probable cause for the above situation is

Options

A. plant is dioecidous and bears only pistillate flowers
B. plant is dioecious and bears both pistillate and staminate flowers
C. plant is monoecious
D. plant is dioecious and bears only staminate flowers

Explanation

**Step-by-Step Solution:**

1. **Understanding the Plant Type**: The question states that we have a dicotyledonous plant that bears flowers but does not produce fruits and seeds. First, we need to recognize that dicotyledonous plants are characterized by having two cotyledons in their seeds and can have various reproductive structures.

2. **Identifying Flower Types**: Flowers can be classified into two main types based on their reproductive structures:
- **Bisexual (Hermaphrodite) Flowers**: These flowers contain both male (stamens) and female (pistils) reproductive organs. Examples include plants like cucumbers and coconuts.
- **Unisexual Flowers**: These flowers contain only one type of reproductive organ. They can be further divided into:
- **Male Flowers (Staminate)**: These flowers have stamens but lack pistils.
- **Female Flowers (Pistillate)**: These flowers have pistils and can produce fruits and seeds.

3. **Analyzing the Situation**: The plant in question bears flowers but does not produce fruits or seeds. This indicates that there may be a lack of female reproductive structures (pistils) necessary for fruit and seed formation.

4. **Dioecious vs. Monoecious Plants**:
- **Monoecious Plants**: These have both male and female flowers on the same plant, allowing for self-pollination and fruit production.
- **Dioecious Plants**: These have male and female reproductive structures on separate plants. If a plant is dioecious and only has male flowers, it will not produce any fruits or seeds because the female flowers (which contain ovaries) are absent.

5. **Conclusion**: Since the plant is described as a dicotyledonous plant that bears flowers but never produces fruits and seeds, the most probable cause is that it is a dioecious plant that bears only staminate (male) flowers. Without female flowers, there can be no fruit or seed development.

**Final Answer**: The plant is dioecious and bears only staminate flowers.

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