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This lecture covers the fundamental processes of information transfer in cells: replication, transcription, and translation. It explains how DNA is replicated, RNA is transcribed, and proteins are synthesized. The lecture delves into the molecular mechanisms involved in each process, such as the role of enzymes like DNA polymerase and RNA polymerase. It also discusses the genetic code, the structure of RNA molecules, and the interactions between codons and anticodons. Furthermore, it explores the maturation of RNA molecules and the folding of proteins. The importance of these processes in maintaining cellular functions and the differences between prokaryotic and eukaryotic cells are highlighted.