Restriction endonucleases:
Correct answer: A. are bacterial enzyme
- A. are bacterial enzyme
- B. convert RNA to DNA
- C. hydrolyze protein into amino acids
- D. get mutated for DNA repair
Explanation
Restriction enzyme, also called restriction endonuclease, a protein produced by bacteria that cleaves DNA at specific sites along the molecule. In the bacterial cell, restriction enzymes cleave foreign DNA, thus eliminating infecting organisms.
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Enzymes are biological catalysts that lower activation energy without being consumed, and their specificity is explained by the lock and key and induced fit models. Work includes the effects of temperature, pH and substrate concentration on reaction rate, plus competitive and non-competitive inhibition and how these differ.
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