1.

restriction enzymes are capable of destroying the DNA of bacteriophage why they do not chew up their host genomic Dna?​

Answer»

Explanation:

Modification enzymes: Bacteria have a SECOND set of enzymes that modify DNA -- these enzymes ADD methyl GROUPS to specific SEQUENCES on the DNA -- the same sequences cut by the restriction enzymes. Role of modifications: These modifications make the bacterial DNA resistant to the restriction enzymes.



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