They use a Chi-square test to accept or reject hypotheses based on the model. Experiments with DNA . Students isolate DNA and use a standard curve to determine the amount that was isolated. They perform a bacterial transformation and test hypotheses about antibiotic resistance, using bacterial growth on plates as their assay. Early Events in Animal Development .
Students observe and compare early events in animal development.
Directions are given for working with living sea urchin and chicken eggs as well as prepared slides. Simulating Microevolutionary Events . Using predictions derived from the Hardy-Weinberg model, students test the influence of population size and natural selection on gene frequencies in simulated populations. An experimental section on UV-induced mutations in bacteria asks students to test hypotheses about dosage effects. Section 3 Diversity and Phylogeny Using Monerans as Experimental Organisms .