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← ScienceWhich consequence results when a polymerase chain reaction (PCR) thermal cycler malfunctions, enabling continuous strand separation?
A)Reduced amplification efficiency✓
B)Accelerated DNA annealing rates
C)Increased non-specific priming
D)Enhanced primer dimer formation
💡 Explanation
Reduced amplification efficiency emerges because continuous strand separation prevents primer annealing and DNA synthesis. Denaturation requires primer binding via **hydrogen bonding**, therefore strands can't elongate; rather than amplification, denatured single strands persist.
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