1. What is the role of restriction enzymes in genetic engineering?

 a) To amplify DNA 

 b) To cut DNA at specific sequences 

 c) To copy RNA into DNA 

 d) To splice RNA

 

2. Which of the following is a common vector used in gene cloning?

 a) RNA polymerase 

 b) Plasmid 

 c) Ribosome 

 d) Mitochondria

3. CRISPR-Cas9 technology is primarily used for:

 a) Protein synthesis 

 b) DNA sequencing 

 c) Gene editing 

 d) RNA transcription

4. In PCR (Polymerase Chain Reaction), the function of Taq polymerase is to:

 a) Unwind the DNA helix 

 b) Synthesize RNA primers 

 c) Extend DNA strands from primers 

 d) Cut DNA at specific sites

 

5. Which of the following is an example of a transgenic organism?

 a) A bacterial cell with a natural plasmid 

 b) A plant that produces its own pesticide 

 c) A virus infecting bacteria 

 d) A yeast cell undergoing natural fermentation