Plant growth hormones extracted from a fungus and a fish are respectively

Options

A. Gibberellins and Zeatin
B. Ethylene and cytokinin
C. Auxin and 2, 4-D
D. Gibberellin and kinetin

Answer

To solve the question regarding the plant growth hormones extracted from a fungus and a fish, we will follow these steps:

### Step-by-Step Solution:

1. **Identify the Plant Growth Hormone from Fungus**:
- The plant growth hormone extracted from a fungus is **Gibberellin**. Specifically, it is often referred to as **Gibberellic acid**. This hormone was first isolated from the fungus **Gibberella fujikuroi**. Gibberellins are known for their role in promoting stem elongation, seed germination, and breaking dormancy.

2. **Identify the Plant Growth Hormone from Fish**:
- The plant growth hormone extracted from fish is **Kinetin**. Kinetin is a type of **cytokinin**, which was isolated from the sperm DNA of the herring fish. Cytokinins are crucial for cell division and play a significant role in various plant growth processes.

3. **Match the Extracted Hormones with the Options Provided**:
- Now, we need to match the identified hormones with the options given in the question. The options are:
- A) Gibberellins and Zeatin
- B) Ethylene and Cytokinin
- C) Auxin and 2,4-D
- D) Gibberellin and Kinetin
- Based on our identification:
- Gibberellin is correct for the fungus.
- Kinetin is correct for the fish.
- Therefore, the correct answer is **D) Gibberellin and Kinetin**.

### Final Answer:
The plant growth hormones extracted from a fungus and a fish are respectively **Gibberellin and Kinetin**.

---