試題詳解

19. Which of the following is in the correct order for one cycle of polymerase chain reaction (PCR)?
(A) Denature DNA; add fresh enzyme; anneal primers; add dNTPs; extend primers.
(B) Anneal primers; denature DNA; extend primers.
(C) Denature DNA; anneal primers; extend primers.
(D) Extend primers; anneal primers; denature DNA.
(E) Add dNTPs; add fresh enzyme; denature DNA.