Question

What is the main reason for PCR to be employed in rDNA technology?

• A. DNA isolated from a cell sample will always be very less
• B. Sometimes the DNA extraction from certain cells is very tough
• C. PCR increase the chance of DNA isolation
• D. PCR helps in identifying the gene of interest very easily

Answer 1

The correct option is A DNA isolated from a cell sample will always be very less

DNA obtained from a cell sample is usually low. Therefore, to amplify the yield, Polymerase Chain Reaction is used. This technique uses the enzyme DNA polymerase and makes replicas of the gene that intended to be amplified.