In an experiment the gene of bioluminescence from firefly has been successfully transferred into a plant as a result of which it started to glow. In the terminology of the molecular genetics, the plant is called

Options

A. Firefly plant
B. Hybrid plant
C. Transgenic plant
D. Bioluminescent plant

Answer

To solve the question regarding the terminology used in molecular genetics for a plant that has successfully incorporated a bioluminescence gene from a firefly, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Experiment**: The experiment involves transferring a specific gene responsible for bioluminescence from a firefly into a plant. This gene allows the plant to exhibit a glowing characteristic similar to that of the firefly.

2. **Identifying Key Terms**: In molecular genetics, when a gene from one organism is introduced into another organism, the resulting organism is often referred to using specific terminology.

3. **Evaluating the Options**:
- **Option A: Firefly Plant**: This name suggests that the plant is a complete entity of a firefly, which is inaccurate since only a single gene has been transferred.
- **Option B: Hybrid Plant**: A hybrid typically refers to the offspring resulting from the mating of two different species or varieties. In this case, since we are dealing with gene transfer rather than reproduction, this term is not appropriate.
- **Option C: Transgenic Plant**: This term refers to a plant that has been genetically modified to contain a gene from another organism. Since the plant now possesses the bioluminescence gene from the firefly, this is the correct terminology.

4. **Conclusion**: Based on the analysis of the options, the correct term for the plant that has incorporated the firefly's bioluminescence gene is **transgenic plant**.

### Final Answer:
The plant is called a **transgenic plant**.