Q.

What role does the enzyme DNA polymerase play in the Polymerase Chain Reaction (PCR)?

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a

It visualizes the amplified DNA segments on a gel.

b

It synthesizes multiple copies of the gene of interest using primers and nucleotides

c

It cuts the DNA into smaller fragments for easier amplification.

d

It merges DNA fragments from different sources into a single fragment.

answer is B.

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Detailed Solution

During Polymerase Chain Reaction (PCR),the enzyme DNA polymerase synthesizes multiple copies of the gene of interest by extending the  primers.The  nucleotidetriphosphates act as substrates.  

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