The role of the primers in PCR is _______.a. to define the target region and provide a 3' end that can be extended by taq polymeraseb. the annealing temperature is maintained until polymerase has finished extension of the new strandsc. to denature the template DNA and define the target regiond. solely to define the target region
Explanation: the primers are modified RNA primases that helps to identify target regions and providing a free 3' OH group which is in turn extended by the taq polymerase.