what reaction does dna polymerase catalyzed
In other words, DNA polymerase is an enzyme that synthesizes a product by interpreting the existing DNA strand as a template and produces the complementary sequence of the template into a new strand. 3. DNA polymerases necessitate the presence of a primer to start synthesis.The reaction catalyzed by DNA polymerases that works to elongate the chain is a nucleophilic attack by the 3âOH terminus of the growing chain on the innermost phosphorus atom of the deoxynucleotide triphosphate.Therefore, a primer strand with a free 3'-OH group must be bound to the template strand from the start.he reaction catalyzed by DNA polymerases that works to elongate the chain is a nucleophilic attack by the 3âOH terminus of the growing chain on the innermost phosphorus atom of the deoxynucleotide triphosphate. Therefore, a primer strand with a free 3'-OH group must be bound to the template strand from the start.