约 241 个结果
在新选项卡中打开链接
  1. Cell communication and cell cycle | AP®︎/College Biology

    Prepare to dive deep into the inner workings of cells! In this unit, you'll learn about how cells communicate with one another, how cells divide, and how problems can arise when these …

  2. Cell cycle checkpoints (article) | Khan Academy

    How cells use checkpoints at the end of G1 phase, end of G2 phase, and partway through M phase (the spindle checkpoint) to regulate the cell cycle.

  3. Khan Academy

    Learn about the phases of the cell cycle, including interphase and mitosis, and their significance in cellular functions.

  4. Mitosis (video) | Cell cycle | Khan Academy

    Mitosis, a key part of the cell cycle, involves a series of stages (prophase, metaphase, anaphase, and telophase) that facilitate cell division and genetic information transmission.

  5. The cell cycle and mitosis (apply) (practice) | Khan Academy

    Apply your understanding of the cell cycle and mitosis in this set of free, standards-aligned practice questions.

  6. Phases of mitosis | Mitosis | Biology (article) | Khan Academy

    How a cell divides to make two genetically identical cells. Prophase, metaphase, anaphase, and telophase.

  7. Interphase (video) | Cell cycle | Khan Academy

    A cell spends most of its life in interphase, which has three phases: G1, S, and G2. In the G1 phase, the cell grows and takes in nutrients. In the S phase, the cell's DNA is replicated. Each …

  8. Phases of the cell cycle (article) | Khan Academy

    The cell cycle is composed of interphase (G₁, S, and G₂ phases), followed by the mitotic phase (mitosis and cytokinesis), and G₀ phase.

  9. Cancer (video) | The cell cycle and mitosis | Khan Academy

    Cells replicate through a process called mitosis, making perfect copies of themselves. Sometimes, a cell's DNA can mutate during replication. Most mutations are harmless, but some can cause …

  10. Cell communication and cell cycle | AP®︎/College Biology

    Prepare to dive deep into the inner workings of cells! In this unit, you'll learn about how cells communicate with one another, how cells divide, and how problems can arise when these …