Meristematic tissue occurs in

Options

A. stem apex
B. root apex
C. leaf apex
D. both 1 and 2

Answer

### Step-by-Step Solution:

1. **Understanding Meristematic Tissue**:
- Meristematic tissue is a type of plant tissue that consists of undifferentiated cells capable of continuous division. This means that these cells can divide and differentiate into various types of cells needed for plant growth.

2. **Types of Meristematic Tissue**:
- There are three main types of meristematic tissues:
- **Apical Meristem**: Located at the tips of roots and shoots, responsible for the elongation of the plant.
- **Intercalary Meristem**: Found at the nodes and internodes of stems and leaves, aiding in the growth of the plant length.
- **Lateral Meristem**: Present in woody plants, responsible for the increase in thickness (secondary growth) of the plant.

3. **Location of Meristematic Tissues**:
- Apical meristems are specifically found at the root tips (root apex) and shoot tips (shoot apex).
- Intercalary meristems are located at the base of leaves and between nodes.
- Lateral meristems are found in the vascular and cork cambium of stems.

4. **Answering the Question**:
- The question asks where meristematic tissue occurs. Since apical meristems are present in both the root apex and shoot apex, the correct answer is that meristematic tissue occurs in both the root and shoot apices.

5. **Final Answer**:
- Therefore, the answer to the question is: **Both Root Apex and Shoot Apex**.