Answer the questions from the figure given below :

If the reaction starts with one molecule of DNA, the number of cycles required to produce one billion amplified products is:

30 cycles

The correct answer is Option (3)- 30 cycles

PCR (Polymerase Chain Reaction) is a technique that is used to make millions of copies of a sample DNA very rapidly. After the completion of each cycle, two copies of DNA samples are produced. So, From 1 DNA molecule we get 2ⁿ molecules after n number of cycles. So from 1 DNA molecule after 30 PCR cycles here we get 1,073,741,824 molecules.