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The Tutor provided a detailed explanation of post-transcriptional modifications in eukaryotic gene expression, including mRNA capping, polyadenylation, and splicing. The Student engaged with the concepts, and they discussed the mechanisms and significance of these processes, including alternative splicing and its biological relevance. The next session will cover mechanisms of evolution.

The Tutor and Student reviewed fundamental molecular biology techniques like PCR and gel electrophoresis, then extensively discussed DNA replication. They covered DNA structure, the enzymes involved in replication, and the processes of initiation, elongation, and termination, including concepts like leading and lagging strands and Okazaki fragments. The session concluded with practice on free response questions related to DNA replication, with a plan to continue with post-transcriptional modification.

The Tutor and Student reviewed the process of transcription, covering prokaryotic and eukaryotic differences in RNA polymerase function, promoter regions, and regulatory elements like enhancers and silencers. They also discussed the initiation, elongation, and termination phases of transcription, including specific recognition sequences and termination mechanisms. The next session will cover post-transcriptional modifications with a half-review, half-new material approach.

The Tutor and Student reviewed key concepts in DNA replication, including initiation, elongation, and termination, with a focus on enzyme functions and the mechanisms of leading and lagging strand synthesis. They then began an overview of transcription, contrasting prokaryotic and eukaryotic processes and the roles of different RNA polymerases.

The Tutor provided an in-depth explanation of DNA structure and the initiation phase of DNA replication, covering concepts like the 5' and 3' ends, base pairing, ORI, helicase, SSB proteins, and topoisomerase. The Student demonstrated understanding by answering questions and participating in discussions. The next session will likely continue with the elongation and termination stages of DNA replication.

The Tutor and Student reviewed the principles and applications of gel electrophoresis and Polymerase Chain Reaction (PCR), focusing on DNA fragment separation and amplification. They also discussed the role of plasmids in bacteria and their use in biotechnology for gene cloning and protein production. The next class will cover DNA replication, transcription, and translation.