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(B) The Polymerase Chain Reaction $(PCR)$ is a technique used to amplify a specific $DNA$ segment. The number of $DNA$ copies produced after $n$ cycle

Vedclass · Accepted Answer

$1$ billion

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(B) The Polymerase Chain Reaction $(PCR)$ is a technique used to amplify a specific $DNA$ segment. The number of $DNA$ copies produced after $n$ cycles is given by the formula $2^n$. Given that the number of cycles $n = 30$, the total number of copies produced is $2^{30}$. $2^{10} = 1,024$ (approximately $10^3$). $2^{30} = (2^{10})^3 \approx (10^3)^3 = 10^9$. Therefore, $2^{30}$ is approximately $1$ billion copies.

How many copies of a gene can be produced from $1$ gene through $30$ cycles of $PCR$?

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