Principle of Inheritance and VariationHard
Question
Restriction endonucleasses
Options
A.are present in mammalian cell for degradation of DNA when the cell dies
B.are used in geneetic engineering for ligating two DNA molecules
C.are used for in vitro DNA synthesis
D.are synthesized by bacteria as part of their defence mechanism
Solution
Restriction enzymes are degradative enzymes which Recognizes and cuts up DNA that is foreign to a cell These enzymes protect bacteria against intruding DNA from other organisms such oas virus or other bacterial cells.
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