Fruit Flies and Genetics Research: Imagine you are working in a genetics lab with the fruit fly Drosophila melanogaster, a model organism for genetics research. You want to determine whether a trait you have discovered in fruit flies is dominant or recessive.
Explain how you would design an experiment to answer this question.
Predict what types of outcomes are possible. Which would indicate that the trait is dominant? Which would indicate that it is recessive?
Model Genetic Organisms:Why are fruit flies considered a model genetic organism? Would humans fit this description?
Adaptations to a Changing Environment
Explain why it is necessary for organisms to have the ability to adapt.
Why is the current environment making it difficult for organisms to adapt?
Explain how organisms develop adaptations.
Explain how artificial selection is like natural selection.
Why are quail useful subjects for an experiment on selection? What other organisms share similar characteristics?
Describe the form of species interaction that was observed between members of lion pride and between lions and hyenas.
Explain how this type of interaction may affect the population densities of the two species.
Competition Between Species
Competition occurs when organisms compete for access to limiting resources. Can you think of resources that are not limiting?
Selection of Traits
Do you think natural selection has shaped traits in these species that makes them better competitors?
If so, what types of traits might be involved? Explain your reasoning.
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