Single-Stranded Ends Generated by the Same Restriction Enzyme Are Complementary

Multiple Choice

Single-stranded ends generated by the same restriction enzyme are complementary to each other.They can be joined together

A) even when the source of the DNA is different.
B) only when the source of the DNA is the same.
C) but the "sticky ends" will most likely have to be modified.
D) but the hybridization of the two ends may cause a problem with cloning.
E) only if the subunits have been methylated.