Naturally occurring endonucleases are very effective against:
A. Protozoans
B. Viruses
C. Bacteria
D. Bacteriophages
Answers
Answer:
Explanation:
Naturally occurring endonucleases are very effective against the Bacteriophages.
Endonuclease is an enzyme that cleaves the internal covalent bonds connecting the nucleotides in a nucleotide chain to divide it into two or more shorter chains.
As a defence mechanism against viruses like bacteriophages, endonucleases are naturally occurring in bacteria.
Bacteriophages, or phages as they are commonly known, are viruses that only infect and replicate in bacterial cells. They are regarded as the most prevalent biological agent on earth and are widely distributed throughout the environment. Their size, appearance, and genetic organisation are incredibly different.
The correct option is Bacteriophages among these options.
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Answer:
Naturally occurring endonucleases are very effective against Bacteriophages.
Explanation:
- A bacterial protein termed restriction enzyme, also known as restriction endonuclease, cleaves DNA at specified locations along the molecule.
- Restrictions enzymes cleave foreign DNA inside the bacterial cell, killing off infected organisms.
- A bacterium uses a restriction enzyme to protect itself from bacteriophages, also known as phages, which are bacterial viruses.
- A phage inserts its DNA into the bacterial cell when it infects a bacterium so that it can multiply.
- By slicing the phage DNA into several pieces, the restriction enzyme hinders reproduction of the phage DNA.
- Because they can limit the variety of bacteriophage strains that can infect a bacterium, restriction enzymes get their name.
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