Genes Count

After learning to calculate probabilities for single examples of genetic crosses in a previous lecture, students are exposed to the concept that allele and genotype frequencies in a population remain in constant equilibrium. A reasonable...

Learners explore population genetics, or how populations of species change over time, leading to evolution with a video that brings together the principles of Mendel and Darwin and explains and models the Hardy-Weinberg equation.

Discusses conditions needed for the Hardy-Weinberg Law to hold true and demonstrates calculations involving allelic frequencies to illustrate this principle.

The ten slides give multiple examples of Genetic Drift, or cases of particular genetic populations. Each set of data requires an explanation and the allele frequency changes should be easy for your students to calculate.  

Discusses the historical background leadingto the development of the Hardy-Weinberg principleand the assumptions of the principle. Providesmathematical and graphical illustrations ofthis principle.

Understand the conditions required for the Hardy-Weinberg model in evolution.

A detailed explanation of the Hardy-Weinberg Principle of genetic equilibrium. [14:57]

An overview of what happens when the conditions for Hardy-Weinberg equilibrium are not fulfilled. [6:54]

This site from Palomar College describes the conditions needed for theHardy-Weinberg Principle to hold true.Completes sample calculations involvingthis principle.

Students investigate how Hardy-Weinberg Equilibrium is established and what assumptions and conditions are necessary to reach Equilibrium. They model alleles using materials such as index cards, M & M's and goldfish.