How Does a Bacterial Cell Protect Its Own DNA from Restriction

question 60

Multiple Choice

How does a bacterial cell protect its own DNA from restriction enzymes?

• A) by adding methyl groups to adenines and cytosines
• B) by using DNA ligase to seal the bacterial DNA into a closed circle
• C) by adding histones to protect the double-stranded DNA
• D) by forming "sticky ends" of bacterial DNA to prevent the enzyme from attaching
• E) by reinforcing the bacterial DNA structure with covalent phosphodiester bonds

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