1. DNA replication is described as semi-conservative because A. one leading strand and one lagging strand are produced in DNA replication B. all new DNA strands are synthesized continuously C. one new DNA strand is synthesized discontinuously D. DNA replication can never produce DNA molecules which consist of both original DNA stands E. one DNA strand is the template while the complementary strand is not 2. Processivity of a polymerase refers to A. whether the polymerase can process the 5'end of the synthesized molecule B. how long a poly-A tail can be formed C. the efficiency of the removal of introns D. the efficiency in editing E. how long a new strand can be synthesized without dissociation 3. Which of the following processes does NOT hydrolyse ATP or GTP? A. Rho-dependent termination of DNA replication B. Unwinding DNA by helicase C. Complementary base-pairing between A and T D. Formation of fMet- RNA E. Translocation of ribosome by EF-G

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