Choose the correct statement from the following.

Options

A. Kinetin is an adenine derivative
B. ABA is a derivative of terpenes
C. `GA_3` is a gaseous phytohormone.
D. IAA is a derivative of `N_6` - furfurylamino purine.

Answer

To solve the question, we need to evaluate each statement provided in the options and determine which one is correct. Here’s a step-by-step breakdown:

### Step 1: Analyze Option 1
- **Statement**: Kinetin is an adenine derivative.
- **Explanation**: Kinetin, also known as 6-furfurylaminopurine, is indeed derived from adenine. It was the first artificial cytokinin discovered and plays a role in promoting cell division and growth in plants.
- **Conclusion**: This statement is **correct**.

### Step 2: Analyze Option 2
- **Statement**: ABA (abscisic acid) is a derivative of terpenes.
- **Explanation**: Abscisic acid (ABA) is actually derived from carotenoids, not terpenes. This makes the statement incorrect.
- **Conclusion**: This statement is **incorrect**.

### Step 3: Analyze Option 3
- **Statement**: GA3 (gibberellic acid) is a gaseous phytohormone.
- **Explanation**: Gibberellic acid (GA3) is a solid compound, typically white to pale yellow, and is not a gas. Therefore, this statement is also incorrect.
- **Conclusion**: This statement is **incorrect**.

### Step 4: Analyze Option 4
- **Statement**: IAA (Indole-3-acetic acid) is a derivative of N6-furfurylaminopurine.
- **Explanation**: Indole-3-acetic acid (IAA) is derived from indole, not from N6-furfurylaminopurine, which is related to kinetin. Thus, this statement is incorrect.
- **Conclusion**: This statement is **incorrect**.

### Final Conclusion
After analyzing all the options, the only correct statement is **Option 1: Kinetin is an adenine derivative**.

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