AP®︎ Biology: Topic 7.5 Practice Test
Prepare for your quiz, test, or the AP exam with focused practice questions on Topic 7.5 of AP Biology – Hardy–Weinberg Equilibrium.
Questions List
Topic 7.5
Question 1 Easy
This question tests the following: EVO-1.K
What is Hardy-Weinberg equilibrium used to describe?
What You’re Being Tested On:
Explore the learning objectives taken directly from the College Board’s AP® Biology Curriculum. Ensure you’re prepared for the exact topics covered on the AP® exam, in-class tests, and quizzes, and gain confidence in your mastery of the material.

Hardy–Weinberg Equilibrium
Learning Objective: 7.5.A
Describe the conditions under which allele and genotype frequencies will change in populations.
Essential Knowledge: 7.5.A.1
The Hardy–Weinberg Equilibrium is a model for describing and predicting allele frequencies in a non-evolving population. Conditions for a population or an allele to be in Hardy–Weinberg equilibrium are: i. A large population size ii. No migration iii. No new mutations iv. Random mating v. No natural selection These conditions are never met, but they provide a valuable null hypothesis.
Essential Knowledge: 7.5.A.2
Allele frequencies in a nonevolving population can be calculated from genotype frequencies. Hardy–Weinberg Equation— p^2 + 2pq + q^2 = 1, and p + q = 1, where: p = frequency of allele 1 in the population q = frequency of allele 2 in the population. Illustrative examples: Graphic analysis of allele frequencies in a population.