ZOO 206 Study Question CH 9 10 Freeman and Herron Spring 2013 1 Distinguish between qualitative and quantitative traits and give examples What genetic bases might underlie the differences in those types of traits 2 Explain heritability in the broad sense and distinguish it from heritability in the narrow sense How might you go about measuring heritability in the narrow sense e g heritability of tail length in mice How would you respond if someone asked you if a trait was genetic or environmental Can you think of a better way to frame the question 3 Describe and distinguish among directional stabilizing and disruptive selection Describe an example of each type of selection 4 Describe how selection on multiple traits e g beak depth and width in ground finches or striped spotted markings and types of locomotion patterns in snakes can result in varying fitness planes 5 Why doesn t natural selection just result in the one best adapted suite of traits In other words how is genetic variation for fitness maintained in populations 6 What are the hypotheses for why oxpeckers spend time with forest buffaloes What does the evidence suggest What does the evidence indicate about casual observations and explanations about adaptations 7 Describe the hypotheses experiments and evidence for why tephritid flies have markings on their wings and wave them What did the control treatments control for 8 Describe the evidence for whether garter snakes behaviorally thermoregulate or not 9 What is one hypothesis for why males in bat species that live in larger social groups have larger testes What does one have to consider when comparing data from many closely related species 10 What is the evidence that phenotypic plasticity in the phototaxic response of Daphnia has evolved in response to the densities of fish in lakes 11 Describe the apparent trade offs in the formation of red coloration in the Fuschia What are the hypotheses for why the flowers turn red What is the evidence that does or does not support the hypotheses 12 Describe how selection based on food availability population density can influence the prevalence of yeast cells with parasitic mitochondria What makes a mitochondrion parasitic What was the control for the experiment and what did it control for