Question

Polymerase chain reaction (PCR) amplifies DNA following the equation.

• A. \( 2^n \)
• B. \( 2n + 1 \)
• C. \( 2^{2} \)
• D. \( N^2 \)

Hint:

In PCR, each cycle of DNA amplification doubles the amount of DNA, so after \( n \) cycles, the total number of copies is \( 2^n \), where \( n \) is the number of cycles.

Answer 1

The Correct Option is A

The polymerase chain reaction (PCR), an in vitro method, amplifies DNA by doubling the DNA amount with each cycle. The total DNA quantity after \( n \) cycles is represented by the formula \( 2^n \), where \( n \) denotes the cycle count. Consequently, the number of DNA copies escalates exponentially with each PCR cycle, following the progression \( 2^n \).Accordingly, the correct representation is \( 2^n \).