Which among the following statements does not hold true for restriction enzyme (a) It recognizes a palindromic nucleotide sequence (b) It is an endonuclease (c) It is isolated from viruses (d) It produces the same kind of sticky ends in different DNA molecules.
Option C.Restriction enzymes are obtained only from the prokaryotes (bacteria) and not from viruses. ∙ It is their (bacteria's) natural defense mechanism against bacteriophage.
