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Questions and Answers
What is the purpose of restriction enzymes in bacteria?
What is the purpose of restriction enzymes in bacteria?
- To recognize and degrade foreign DNA (correct)
- To recognize and degrade bacteria's own DNA
- To synthesize new DNA strands
- To protect bacteria from viral infections
How long is the short sequence recognized by each restriction enzyme?
How long is the short sequence recognized by each restriction enzyme?
- Always 4 to 6 base-pairs long
- Always 2 to 4 base-pairs long
- Varies depending on the enzyme (correct)
- Always 6 to 8 base-pairs long
Which restriction enzyme was one of the first to be isolated?
Which restriction enzyme was one of the first to be isolated?
- BamH I (correct)
- Hind III
- Xho I
- EcoR II
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