Question

What is the natural function of restriction enzymes in bacteria? A)protection from viruses B)ligation of DNA sequences C)replication of DNA sequences D)transfer of DNA sequences from one cell to another

Answer 1

Answer: A

Step-by-step explanation:

A bacterium uses a restriction enzyme to defend against bacterial viruses called bacteriophages, or phages. When a phage infects a bacterium, it inserts its DNA into the bacterial cell so that it might be replicated

Answer 2

A) Protection from viruses

Step-by-step explanation:

Restriction enzymes are part of the bacterial defense system against invading viruses (bacteriophages). These enzymes can recognize specific DNA sequences, called recognition sites, and cleave the DNA at or near those sites. By doing so, they effectively cut up and destroy the viral DNA, preventing the virus from replicating inside the bacterial cell. This protection mechanism is a crucial part of the bacterial immune system.