Where Do Restriction Enzymes Come From, and What Is Their $\lambda$

question 25

Multiple Choice

Where do restriction enzymes come from, and what is their normal physiological function?

• A)Phage \(\lambda\) produces them and they replicate viral DNA.
• B)Phage \(\lambda\) produces them and they confer antibiotic resistance.
• C)They are yeast DNA replication enzymes.
• D)Bacteria produce them to protect against viral invasion.
• E)They are bacterial DNA replication enzymes.

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