Translator is employed for pollination in

Options

A. Erythrina
B. calotropis
C. Jasminum
D. Cestrum.

Answer

To solve the question "Translator is employed for pollination in DASH," we will analyze each option provided and determine which one employs the translator mechanism for pollination.

### Step-by-Step Solution:

1. **Understand the Translator Mechanism**:
- The translator mechanism involves the anthers of a flower being sticky and resembling fine threads or discs. When an insect lands on these sticky anthers, pollen grains adhere to the insect's legs. When the insect moves to another flower, the pollen is transferred to the stigma of that flower, facilitating pollination.

2. **Analyze the Options**:
- **Option A: Erythrina**:
- Pollination is primarily done by birds. Since birds do not interact with the sticky anthers in the same way insects do, Erythrina does not employ the translator mechanism. Therefore, this option is incorrect.

- **Option B: Calotropis**:
- Also known as milkweed, Calotropis is pollinated by bees. The flowers have sticky anthers that resemble discs, which attract bees. When bees land on these flowers, pollen grains stick to their legs, and when they visit another flower, they transfer the pollen. This matches the description of the translator mechanism, making this option correct.

- **Option C: Jasminum**:
- Jasminum flowers undergo cross-pollination, primarily facilitated by butterflies. While it is an entomophilous plant, it does not utilize the translator mechanism as described. Thus, this option is incorrect.

- **Option D: Self-Pollination**:
- This involves the transfer of pollen within the same flower or plant, eliminating the need for external pollinators. Since there is no interaction with other flowers, the translator mechanism is not applicable here. Therefore, this option is also incorrect.

3. **Conclusion**:
- After analyzing all the options, we find that **Option B: Calotropis** is the only one that employs the translator mechanism for pollination.

### Final Answer:
**Translator is employed for pollination in: Option B - Calotropis.**