True about Restriction enzyme
Restriction enzyme or restriction endonuclease is an enzyme that cuts DNA at or near specific recognition nucleotide sequences known as restriction sites.Recognising a palindromic sequence enables them to cut both strands of DNA at the "same" site because the strand will have the same sequence only in different directions at that site.
Palindromic
Produce DNA sticky end
Restict replication of DNA
Restriction sites are not specific
Metabolism of nucleic acids