BUG POPULATION BB COUNT-8 Bb COUNT-6 bb COUNT-6 TIME-300 Seconds

Procedure II - Part C - Bug Population changes when there is not a rim-color breeding preference for bugs (genetic drift)

Data Table - Enter your Final Bug Counts

BB Bug

Count

Bb Bug

Count

bb Bug

Count

Percentage Tables - Enter the Final Bug percentages

Tip: Bug Type Percentage = 100% ´ (Bug Type Count) / (Total Number of Bugs)

BB Bug

Percentage

Bb Bug

Percentage

bb Bug

Percentage

Tip: Blue Rimmed Baby Bug Percentage = BB Bug Percent + Bb Bug Percent

Blue Rimmed Bug

Percentage

Yellow Rimmed Bug

Percentage

Observations and Questions

[23] Describe the bug population change results during this data run in terms of genotypes and phenotypes.

[24] Is this population consistent with the expectations of the Hardy-Weinberg model, that is, is this population stable? Hint: Under the Background tab, go to the Summary of Formulas Needed for Calculations section, see the example titled Using the Hardy-Weinberg Equation, then do Step 3 and Step 4 for this data run.

[25] Discuss what your analysis above indicates about the applicability of the Hardy-Weinberg criteria to this population. Which assumptions, if any, of the Hardy-Weinberg criteria are violated?

Note: The topic below depends on sharing and comparing Procedure II - Part C data with your fellow classmates. Your instructor will inform you about the sharing process including details about how, where, and when, you should post your results and answers to the questions presented below.

[26] Compare your data run results to the results of the class as a whole. What population changes are possible? Are there any cases of extreme changes in population composition (e. g. all blue-rimmed or all yellow-rimmed)? What does the variety of population outcomes tell us about potential outcomes for small isolated populations that experience genetic drift?