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

### Step 1: Identify the Organisms and Their Cell Wall Composition
- **Eubacteria**: These are prokaryotic cells that have a peptidoglycan cell wall.
- **Plant Cells**: These eukaryotic cells have a cell wall made of cellulose.
- **Fungal Cells**: These eukaryotic cells have a cell wall made of chitin.
- **Animal Cells**: These cells do not have a cell wall.

### Step 2: Identify the Enzymes Used for Cell Wall Lysis
- **Lysozyme**: This enzyme is used to digest the peptidoglycan in bacterial cell walls (Eubacteria).
- **Cellulase**: This enzyme is used to break down cellulose in plant cell walls.
- **Chitinase**: This enzyme is used to digest chitin in fungal cell walls.
- **Animal Cells**: Since animal cells do not have a cell wall, there is no enzyme needed for lysis.

### Step 3: Match the Organisms with the Correct Enzymes
- **Eubacteria**: Lysozyme (Correct)
- **Plant Cells**: Cellulase (Correct)
- **Fungal Cells**: Chitinase (Correct)
- **Animal Cells**: Cellulase (Incorrect, as animal cells do not have a cell wall)

### Step 4: Conclusion
The organism that is incorrectly linked with the cell wall lysing enzyme is the **Animal Cell with Cellulase**. This is incorrect because animal cells do not possess a cell wall, and thus, cellulase is not applicable.

### Final Answer
The incorrect link is: **Animal Cell with Cellulase**.

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