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All Known DNA Polymerases Can Only Elongate a Preexisting DNA

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All known DNA polymerases can only elongate a preexisting DNA chain (i.e., require a primer) but cannot initiate a new DNA chain. Nevertheless, during semiconservative DNA replication in the cell, entirely new daughter DNA chains are synthesized. Explain the process that occurs in the cell that allows for the synthesis of daughter chains by DNA polymerase.

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Answered by ExamLex AI

During semiconservative DNA replication,...

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