Which cell/ organisms is incorrectly linked with the cell wall lysing enzyme used to extract DNA ?

Options

A. Eubacteria-Lysozyme
B. Plant cell-Cellulase
C. Fungus-Chitinase
D. Animal cell-Cellulase

Answer

To solve the question of which cell or organism is incorrectly linked with the cell wall lysing enzyme used to extract DNA, we can follow these steps:

### Step 1: Understand the Requirement
We need to identify which organism is incorrectly paired with its respective cell wall lysing enzyme. The cell wall must be digested to extract DNA, and different organisms have different types of cell walls.

### Step 2: Analyze the Options
1. **Eubacteria with Lysozyme**:
- Eubacteria have a peptidoglycan cell wall, which can be lysed by lysozyme.
- This pairing is correct.

2. **Plant Cells with Cellulase**:
- Plant cells have a cell wall made of cellulose, which can be digested by cellulase.
- This pairing is also correct.

3. **Fungi with Chitinase**:
- Fungi possess a cell wall made of chitin, which can be lysed by chitinase.
- This pairing is correct as well.

4. **Animal Cells**:
- Animal cells do not have a cell wall; they have a plasma membrane instead.
- Therefore, there is no enzyme needed to lyse a cell wall since it does not exist.

### Step 3: Identify the Incorrect Pair
From the analysis, we can see that the pairing of animal cells with any cell wall lysing enzyme is incorrect because animal cells do not possess a cell wall.

### Conclusion
The incorrectly linked pair is **Animal Cells** with any cell wall lysing enzyme, as animal cells do not have a cell wall.

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