<prompt> All are added to PCR, except:DeoxynucleotideDideoxynucleotideThermostat DNAPTemplate DNA  <response>: Ans. B. DideoxynucleotideRef: Tietz Textbook of Clinical Chemistry 4fe page1446Pre requisites of PCRSample DNA to be amplifiedDeoxynucleotides.Thermostable Polymerase--Taq Polymerase obtained from Thermus Aquaticus found in hot springs.Primer.Mgcl2 , KCl 