What is the function of restriction endonucleases in bacteria?

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Within a six-base DNA recognition sequence, an enzyme that cuts between the 3rd and 4th bases from the 5' end will generate blunt ends.

a)True

b)False

a) True

What is the function of restriction endonucleases in bacteria?

a) They serve no function.

b)They allow bacteria to genetically recombine with other bacteria.

c) They allow bacteria to engineer new DNA fragments.

d)They provide a defense mechanism against infection by viruses.

Our answer is surely D

d)They provide a defense mechanism against infection by viruses.

Explanation:

Restriction enzyme/restriction endonuclease:

Are produced by bacteria for cleaveing DNA at specific sites. Restriction enzymes cleave foreign DNA in the bacterial cell to fight against infecting organisms.

Pls Note:

Restriction enzyme are used by

bacteria to defend against bacterial viruses called bacteriophages or phages