Khan Academy
Khan Academy: Phases of Mitosis
Tutorial examines how a cell divides to make two genetically identical cells and explores the four basic phases: prophase, metaphase, anaphase, and telophase.
Khan Academy
Khan Academy: Cell Cycle Regulators
This article looks at a few of the most important core cell cycle regulators: proteins called cyclins, enzymes called Cdks, and an enzyme complex called the APC/C.
Khan Academy
Khan Academy: Cell Cycle Checkpoints
Learn how cells use checkpoints to regulate the cell cycle. This article provides an overview of cell cycle control, outlining the factors that influence a cell's decision to pause or progress at each checkpoint.
Khan Academy
Khan Academy: Meiosis
In this tutorial students will learn how meiosis reduces chromosome number by half and become familiar with crossing over, meiosis I, meiosis II, and genetic variation.
Curated OER
Science Kids: Science Images: Biocomplexity Diagram
This biocomplexity spiral diagram depicts the multileveled complexity of organisms in their environments, including molecular, cellular, habitat, ecosystem and others.