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There main purpose is to cut up viral DNA that invades bacteria. Since they do this at definite sites, depending on which restriction enzyme is used, they can be used in genetic recombination exercises. Inserting sections of DNA into bacterial plasmids so that desired products will be made by these bacteria.

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13y ago
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9y ago

Restriction enzymes sever DNA at or near specific nucleotide sequences known as restriction sites. These cuts produce a double-stranded piece of DNA.

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Q: What is the purpose of restriction enzymes?
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Related questions

What enzyme do scientists use to cut genes out of strands if DNA?

restriction enzymes


Which pair of enzymes is necessary to make recombinant DNA?

Actually the answer would be Restriction enzyme and DNA ligase.


Enzymes used to cut DNA molecules in recombinant DNA researsh are?

restriction enzymes


Do restriction enzymes cut protein molecules at specific sites?

No. restriction enzymes do not cut proteins. restriction enzymes cut DNA molecules at specific sites called restriction sites.


How are large DNA molecules cut up?

by using restriction enzymes


What are enzymes cutting DNA at specific sites to form restriction fragments called?

restriction enzymes or endonuclease enzymes


What is used to cut the DNA chain so that new genes may be inserted?

Restriction Enzymes


Which of the following cuts DNA molecules at specific locations?

restriction endonuclease enzymes


What organism uses restriction enzymes?

Bacterias use restriction enzymes as a form of defense mechanism. We as people use these restriction enzymes in bacterias to aid us in genetic engineering.


What does a geneticist use to cut DNA at specific base sequences?

Restriction enzymes, also known as restriction endonucleases, are used to cut DNA into smaller fragments. Restriction enzymes are found in bacteria, where they act like molecular scissors by cutting up DNA from invading viruses or bacteriophages. Each restriction enzyme recognizes a specific nucleotide sequence and cuts the DNA at that site. This process makes restriction enzymes extremely useful in biotechnology where they are used in procedures such as DNA cloning, DNA fingerprinting, and genetic engineering. There are hundreds of known restriction enzymes, and each one was named for the bacteria from which it was isolated. For example, EcoRI was isolated from Escherichia coli and HaeIII from Haemophilus aegyptius.


Are bacteria a source of restriction enzymes in DNA?

Restriction enzymes are made by the ribosomes in bacteria. For information on which bacteria produce which specific restriction enzymes, some can be found in a table near the bottom of this page: http://en.wikipedia.org/wiki/Restriction_enzymes


Which enzyme opens DNA molecules?

Restriction Enzymes