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- Kimberly K.
- Bourbonnais, IL
Allele Frequencies Teacher Resources
Find Allele Frequencies educational ideas and activities
Students investigate how selective forces like food, predation and diseases affect evolution. In this genetics lesson, students use red and white beans to simulate the effect of malaria on allele frequencies. They analyze data collected from the experiment and answer analysis questions at the end of the lab.
Students use a mathematical simulation of genetic drift to answer questions about the factors that influence this evolutionary process. They run a series of simulations varying allele frequency and population size and then analyze their data and propose a model to explain their results. A second set of simulations is performed with natural selection added to the simulation.
Students examine the molecular studies of organisms that have led to a new era in their understanding of speciation and evolutionary relationships. Students study the allelic frequency of genes controlling specific molecules and assess historical continuity among closely and distantly related species. Students research and work on molecular data.
The Hardy-Weinberg principle is the focus of this concise slideshow. Some vocabulary definitions are given on the first 2 slides, and the rest are given over to examples of the Hardy-Weinberg theorem. Calculations of the H-W principle are shown applied to sickle cell and malaria.
What does appearance have to do with survival in nature? Allow your future biologists a chance to learn about natural selection through games, flashcards, discussions, and an interesting writing prompt about squirrel colors in the Grand Canyon. Also included are several ways to differentiate, possible extensions, and school-home connections.
A sufficient slide show on natural selection is available to use with your biology class. It introduces viewers to foundations of this mechanism of evolutionary change. Notes are provided to support your lecture on genetic variation and the three types of selection: directional, stabilizing, and disruptive. Helpful graphs and photos enhance understanding of the concept of natural selection.
Can your young biologists interpret population graphs, match macroevolution patterns and descriptions, and answer multiple choice questions about evolution? Find out with a comprehensive three-page quiz covering some specific examples of natural selection and adaptation. To help you collect academic data, you may choose to use the quiz as a pretest or a posttest.
Here is a cute, yet practical assignment for using the Hardy-Weinberg principle for determining allele frequency in an imaginary family of rabbits. Roger Rabbit, an albino bunny, noticed that some bunnies in his clan had brown fur. Your junior geneticists examine the genotypes for 200 members of the clan and calculate frequency. The worksheet is five pages long and includes an optional interactive extension exercise.
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 grasp of math is necessary to comprehend this presentation.