Which of the following is not associated with animal cells?

Options

A. Plasmodesmatate
B. Gap junctions
C. Desmosomes
D. Tight junctions

Explanation

To determine which of the following options is not associated with animal cells, we need to analyze each option provided:

1. **Plasmodesmata**:
- Plasmodesmata are microscopic channels that traverse the cell walls of plant cells and certain algal cells. They facilitate communication and transport between adjacent plant cells. Since plasmodesmata are specific to plant cells, they are **not associated with animal cells**.

2. **Gap Junctions**:
- Gap junctions are specialized intercellular connections in animal cells that allow for the transport of ions and small molecules between adjacent cells. They are important for cell communication and are indeed associated with animal cells.

3. **Desmosomes**:
- Desmosomes are adhesive protein complexes that anchor adjacent cells together, providing mechanical strength and integrity to tissues. They are commonly found in animal cells, particularly in tissues that experience significant mechanical stress.

4. **Tight Junctions**:
- Tight junctions are connections between epithelial cells that create a barrier to prevent the passage of molecules and ions through the space between cells. They are also associated with animal cells.

Based on the analysis above, the correct answer to the question "Which of the following is not associated with animal cells?" is **Plasmodesmata**.

### Step-by-Step Solution:
1. Identify the options provided in the question.
2. Analyze each option to determine its association with animal cells.
3. Conclude that plasmodesmata are specific to plant cells and not found in animal cells.
4. State the final answer: Plasmodesmata is not associated with animal cells.