Model Organisms. Model Organism. Important features of all model organisms Short lifespan Small, easy and inexpensive to maintain Produce large numbers of offspring Development external as well as internal Availability of mutants History/previous experiments and discoveries
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One is that RNAi appears to be universal since introduction of dsRNA into nearly all animal, fungal, or plant cells leads to homology-directed mRNA degradation.
The second was the rapidity with which experimental investigation of this mysterious process revealed the molecular mechanisms.