Which of the Following Processes Helps Bacterial Cells Protect Their

Multiple Choice

Which of the following processes helps bacterial cells protect their own DNA from restriction enzymes (endonucleases) ?

A) adding methyl groups to adenines and cytosines
B) using DNA ligase to seal the bacterial DNA into a closed circle
C) adding histones to protect the double-stranded DNA
D) forming "sticky ends" of bacterial DNA to prevent the enzyme (endonuclease) from attaching