In this approximately 20 to 25 minute lecture activity, students work collaboratively in groups to learn about the genetic basis of, and molecular mechanisms behind, the variation observed in squirrel coat color. As components of the activity, students will respond in groups to clicker style questions, and will work together to complete a worksheet that, ultimately, requires the construction of a...

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In this activity, a visual model of the reactions of photosynthesis (and to a lesser extent, respiration) is provided to students. Students evaluate the model in groups, and subsequently use it to answer questions about the model as presented, as well as the results of perturbations to the pathways indicated in the model. These ?perturbation? questions require students to step back and ana...

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This site contains 19 video lessons, each containing skill checks, videos, and articles. . Topics include Respiration, Photosynthesis, Evolution and natural selection, cell division, Heredity and genetics, etc.

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This site is award-winning and comprehensive. It thoroughly discusses genes, tissues, biochemical paths, and developmental processes in the fruit fly, Drosophila. Its gene index identifies genes with their functions, maternal and zygotically transcribed genes, genes important to behavior and genes in conserved pathways. Its tissue and organ development section shows stages and an atlas, as well...

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