Which statement is incorrect?
A. Genetic enginering is also called recombinant DNA technology
B. Bacteriophage is not used as vector
C.MALAYALAM is a pallndrome
D. Ethidium bromide can not be used for stainign DNA

Options

A. A,B
B. B,D,
C. C,D
D. A,B,C,D

Answer

To determine which statement is incorrect, let's analyze each option one by one:

### Step-by-Step Solution:

1. **Statement A: Genetic engineering is also called recombinant DNA technology.**
- This statement is **correct**. Genetic engineering involves manipulating DNA, and recombinant DNA technology is a key method used in genetic engineering to combine DNA from different sources.

2. **Statement B: Bacteriophage is not used as a vector.**
- This statement is **incorrect**. Bacteriophages (viruses that infect bacteria) can indeed be used as vectors in genetic engineering to introduce foreign DNA into bacterial cells.

3. **Statement C: MALAYALAM is a palindrome.**
- This statement is **correct**. A palindrome reads the same forwards and backwards, and "MALAYALAM" is an example of such a word.

4. **Statement D: Ethidium bromide cannot be used for staining DNA.**
- This statement is **incorrect**. Ethidium bromide is commonly used as a fluorescent dye to stain nucleic acids, including DNA, for visualization under UV light.

### Conclusion:
The incorrect statements are **B** and **D**. However, since the question asks for one incorrect statement, the most directly incorrect statement is **B**: "Bacteriophage is not used as a vector."

### Final Answer:
**B. Bacteriophage is not used as a vector.**

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