Wwxxyyzz Ap Bio 2020 May 2026

Describe one mechanism that could have introduced the ‘a’ allele into the population. (1 point)

Answer Key (for teacher use) 1(a) … 1(b) … (etc.) Wwxxyyzz Ap Bio 2020

A student claims the change from A to a frequency of 0.7 is proof of evolution. Is the student correct? Defend your answer using biological definitions. (2 points) 2. 2020 AP Bio Exam Format Summary (for reference) | Feature | Details | |-----------------------|-------------------------------------------------------------------------| | Total time | 45 minutes | | Number of FRQs | 2 | | Question 1 | Longer, data‑based or experiment‑based (25 min) | | Question 2 | Shorter, analysis of a biological model or scenario (20 min) | | Topics highlighted | Natural selection, cellular energetics, information transfer (gene expression), and ecological interactions | | No multiple choice | Yes (due to COVID‑19 shortened exam) | 3. Blank Template for “Wwxxyyzz Ap Bio 2020” Paper You can copy this into a document and fill in your own details. Describe one mechanism that could have introduced the

If the population is moved to a high‑glucose environment, predict what will happen to the frequency of the ‘a’ allele over 50 generations. Justify your prediction. (2 points) Defend your answer using biological definitions

| Condition | Growth rate | |--------------------|-------------| | Aerobic, glucose | 1.2 | | Anaerobic, glucose | 0.4 | | Aerobic, no glucose| 0.1 |