Replication and transcription are similar processes in machanistic terms bacause both: (A) Use RNA primers for initiation, (B) Use deoxyribonucleotides as precursors, (C) Are semi conserved events, (D) Involve phosphodiester bond formation with elongation occurring in the 5' - 3' direction
Answer is D. In both replication & transcription processes, the elongation occurs by the formation of phosphodiester bond in 5' → 3' direction.