Which one of the following pair is not correctly matched

Options

A. IAA - Cell wall elongation
B. Abscissic acid - Bolting
C. Gibberellic acid - Stem elongation
D. Cytokinin - Cell division

Answer

To determine which pair is not correctly matched, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Identify the First Pair: IAA and Cell Wall Elongation**
- IAA stands for Indole-3-acetic acid, which is a natural auxin.
- Auxins, including IAA, are known to promote cell wall elongation.
- **Conclusion**: This pair is correctly matched.

2. **Identify the Second Pair: Abscisic Acid and Bolting**
- Abscisic acid (ABA) is a plant hormone that primarily functions in stress responses and is not directly involved in the process of bolting.
- Bolting is typically induced by gibberellins, not abscisic acid.
- **Conclusion**: This pair is not correctly matched.

3. **Identify the Third Pair: Gibberellic Acid and Stem Elongation**
- Gibberellic acid (GA) is known to promote stem elongation and is involved in various growth processes.
- **Conclusion**: This pair is correctly matched.

4. **Identify the Fourth Pair: Cytokinin and Cell Division**
- Cytokinins are plant hormones that promote cell division and are involved in various growth and developmental processes.
- **Conclusion**: This pair is correctly matched.

### Final Answer:
The pair that is not correctly matched is **Abscisic Acid and Bolting**.

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