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(B) $PCR$ (Polymerase Chain Reaction) is a technique used to amplify a specific $DNA$ segment.It requires two sets of small,chemically synthesized oli

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$2$

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(B) $PCR$ (Polymerase Chain Reaction) is a technique used to amplify a specific $DNA$ segment.It requires two sets of small,chemically synthesized oligonucleotides that are complementary to the regions of the $DNA$ template.These two primers are known as the forward primer and the reverse primer.They bind to the $3'$ ends of the two strands of the denatured $DNA$,allowing the $DNA$ polymerase to extend the sequence.Therefore,$2$ types of primers are required for the amplification process.

How many types of primers are required for the amplification of a gene in $PCR$?

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