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introduces us to RNAi, a mechanism by which biologists "down-regulate" gene expression and observe the physiological consequences. A series of experiments demonstrate the power of RNAi in a model organism (roundworm C. elegans). Videos, animations, interviews with experts, and other materials are provided. (Cold Spring Harbor Laboratory, National Science Foundation)
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A human is a complicated organism, and most molecular genetic experiments would either be technically difficult or unethical to perform on human subjects. For these reasons, biologists often use simpler "model" organisms. The nematode worm Caenorhabditis elegans is one of several organisms commonly studied by biological researchers today. |
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Resources -- videos |
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