Question

In PCR, DNA is amplified about 10⁹ times, when cycle is repeated by

• A. 1 Time
• B. 1 Million times
• C. 1 Billion Times
• D. 30 Times

Answer 1

The correct option is D 30 Times

DNA amplification rate in PCR

DNA amplification rate in PCR is as follows:

• The total number of DNA molecules produced after "n" PCR cycle = 2ⁿ
• 10⁹ is approximately 2³⁰ and hence 30 cycles is needed to amplify DNA 10⁹ times.

Final answer

(A) 30 times