Proteins isolated from bacteria and used in recombinant DNA technology to cut DNA at specific sequences are
A) restriction enzymes.
B) bacteriophage enzymes.
C) plasmids.
D) methylating enzymes.
E) telomerases.

Question

Quizplus · Accepted Answer

Proteins used in recombinant DNA technology to cut DNA at specific sequences are called restriction enzymes. Bacteriophage enzymes are not typically used for this purpose, plasmids are used to transfer DNA between bacteria, methylating enzymes modify DNA by adding a methyl group, and telomerases are enzymes that add repetitive sequences to the ends of chromosomes.

Proteins Isolated from Bacteria and Used in Recombinant DNA Technology