Bacteria protect themselves from viral attack by producing ________

Exonuclease

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Endonuclease

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DNA ligase

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Gyrase

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Solution

The correct option is B Endonuclease
Restriction Endonuclease are produced by bacteria against bacteriophage. These enzymes cleave the DNA fragments of the phages at specific sites. This way the foreign DNA is cleaved into several smaller fragments thereby rendering them harmless to the host organism.

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Similar questions

Can a microbe attack on other microbe

For example,

Can a fungi get a viral disease or a bacteria get a fungal attack?

Crystals of Bt-toxin produced by some bacteria do not kill the bacteria themselves because:

(a) bacteria are resistant to the toxin

(b) toxin is immature

(d) bacteria encloses toxin in a special sac

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