The natural role of restriction enzymes in bacteria is to
A) allow transposons to move to another place in the chromosome.
B) protect the cell from invading phages.
C) make conjugation more efficient.
D) allow cells to accept foreign DNA.
E) provide the cell with new phenotypes, such as antibiotic resistance.

Question

Quizplus · Accepted Answer

Restriction enzymes in bacteria cut foreign DNA, such as that from phages, thus protecting the bacteria from viral infections.

The Natural Role of Restriction Enzymes in Bacteria Is to