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

hormones in blood stream

image: dtc.ucsf.edu

endocrine glands secrete hormones into the blood stream near them; the hormones then travel in our bloodstream until it reaches its destination, called a target cell, in distance parts of the body. in the target tissue, hormones lock onto the target’s plasma membrane, called the receptor site.

answer: carbon 14 can only be used to determine the age of the organisms that were once living, and igneous rocks are non living.

explanation: