Last Minute Lecture

The Cell Cycle and Mitosis — Cyclin–Cdk Regulation, Checkpoints, and Chromosomal Division Explained | Chapter 13 of Karp’s Cell and Molecular Biology Chapter 13 of Karp’s Cell and Molecular Biology: Concepts and Experiments examines one of the most essential processes in all of biology: how cells replicate their contents and divide accurately to produce new daughter cells. The chapter provides a detailed look at the phases of the cell cycle, the molecular regulators that control progression, and the mechanics of mitosis and cytokinesis. This expanded summary builds on the YouTube video explanation and offers a structured, comprehensive guide for students studying cell division, developmental biology, and cancer biology. For a visual breakdown of mitotic phases and regulatory checkpoints, be sure to watch the full chapter summary above. If you’re working through Karp’s textbook, subscribing to Last Minute Lecture provides ongoing support for every chapter in the series. The C...

The Cell Cycle — Mitosis, Cytokinesis, and Cancer Explained | Chapter 12 of Campbell Biology Welcome to Last Minute Lecture! This post unpacks the cell cycle—the process by which cells grow, replicate DNA, and divide to produce genetically identical daughter cells—as described in Chapter 12 of Campbell Biology . Learn the steps of mitosis and cytokinesis, cell cycle regulation, and how errors in these processes can lead to cancer. Watch the full video summary below and subscribe for more concise, chapter-by-chapter science learning! Introduction: Why the Cell Cycle Matters The cell cycle is fundamental for growth, development, repair, and reproduction. Chapter 12 details how eukaryotic and prokaryotic cells divide, how chromosomes are distributed, and what happens when regulation fails—leading to cancer. The Cell Cycle and Its Phases Interphase (90% of the cycle): G1 Phase: Cell grows and carries out normal functions. S Phase: DNA is replicated fo...