Question

After 4 PCR cycles, how many DNA molecules are formed from one DNA template molecule?

• A. 4
• B. 32
• C. 16
• D. 8

Answer 1

Answer: (C)

16

From a single DNA template molecule, it is possible to generate 2${}^n$ DNA molecules, after 'n' number of cycles in polymerase chain reaction (PCR).

So, after 4 PCR cycles, 2${}^4$ = 16 DNA molecules will be formed.

Thus, the correct answer is option C.