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Questions and Answers
Which of the following best describes restriction enzymes?
Which of the following best describes restriction enzymes?
- Proteins that recognize specific base sequences and cut only one strand of DNA at specific sites
- Proteins that recognize specific base sequences and bind to them without cutting the DNA
- Proteins that recognize specific base sequences and cut both strands of DNA at specific sites (correct)
- Proteins that recognize specific base sequences and unwind the DNA
What is the purpose of methylation in bacteria?
What is the purpose of methylation in bacteria?
- To degrade foreign DNA
- To repair DNA damage caused by restriction enzymes
- To protect its own DNA from restriction enzymes (correct)
- To enhance the activity of restriction enzymes
What is the function of restriction enzymes in bacteria?
What is the function of restriction enzymes in bacteria?
- To facilitate DNA replication
- To repair DNA damage
- To provide a defense mechanism against invading viruses (correct)
- To regulate gene expression
What is the significance of a palindromic sequence in DNA?
What is the significance of a palindromic sequence in DNA?
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What is the role of restriction maps in manipulating DNA?
What is the role of restriction maps in manipulating DNA?
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