NEET2026BiologyChapterActual
During the amplification of a gene of interest using PCR, a researcher sets the thermocycler for 5 continuous cycles. Assuming perfect efficiency, how many copies of the target DNA will be produced from a single double-stranded template molecule?
Options
- A10
- B16
- C32
- D64
Correct answer
C. 32
Step-by-step solution
In Polymerase Chain Reaction (PCR), the amount of DNA doubles after each cycle. The number of DNA copies produced after n cycles is given by the formula 2^n N₀ , where N₀ is the initial number of DNA molecules. Given n = 5 and N₀ = 1 . Number of copies = 2^5 1 = 32 . Answer: 32