Primers are used in both PCR and in DNA sequencing. What is the purpose of the primers?

A. to separate the DNA template strands
B. to provide a 3'-OH for DNA polymerase to build a new DNA strand
C. to terminate synthesis of the growing DNA strand
D. to separate various-sized DNA products
E. to add nucleotides to a growing DNA strand


Answer: B

Biology & Microbiology

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