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DNA polymerase requires a primer to initiate DNA replication. In a PCR reaction, DNA primers are added to the reaction. In E.coli, how are primers provided?A.In vivo DNA replication does not require a primer.B.DNA primers are synthesized by DNA polymerase I.C.RNA primers are synthesized by DNA primase.D.E.coli DNA polymerase III has a primer embedded inside the enzyme.