DNA Replication in T7 Origin of In both direction. an RNa primer is involved Rightward: RNA primer is synthesized by T7 Eye"form 5 RNa polymerase Leftward: RNa primer is "Y form synthesized by primase Both primers are elongated by T7 DNA polymerase Completed strandsDNA Replication in T7 In both direction, an RNA primer is involved. Rightward: RNA primer is synthesized by T7 RNA polymerase Leftward: RNA primer is synthesized by T7 primase Both primers are elongated by T7 DNA polymerase