ReNEET 2026 · Biology · Q162Biotechnology: Principles and ProcessesIn our bank: Concept match · 78%
During PCR, primers bind to the DNA strands in the ______ step.
- A.denaturation
- B.extension
- C.annealing✓
- D.ligation
Correct Answer
(C) annealing
Solution & Explanation
PCR has three repeated steps: denaturation (strands separate), annealing (the two primers base-pair/anneal to the complementary single strands), and extension (Taq polymerase synthesises new strands). Primers bind in the annealing step.
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