Genetic Equilibrium, The Hardy-Weinhard Principle, and Natural Selection
With this simulation, students use a physical model to gain perception into the genetic processes involved when natural selection is functioning on a population in genetic equilibrium. By developing a basic understanding of the Hardy-Weinberg Principle and associated equations, students can more easily grasp an understanding of the actual complexity of natural selection in nature.
Details at a Glance
- 1-3 Days | 1-3 ~50 minute class periods
- 1 Activity
- Accommodates unlimited classes, each with 16 groups of 2 students
- Meets our criteria for supporting literacy
- All materials are non-consumable
- Includes digital resources
Scientific Concepts
•The principles of genetic equilibrium and natural selection relate to the process of evolution.
•The Hardy-Weinberg equations can be corroborated with data collected from a physical simulation.
•Allele frequencies in equilibrium will remain in equilibrium in the absence of mutation, migration, or selection.
•Natural selection operates against the less favorable phenotypes in a population resulting in a larger proportion of favorable phenotypes in subsequent generations.
KEY VOCABULARY: allele, genetic equilibrium, natural selection, dominant, genotype, phenotype, evolution, Hardy-Weinberg principle
Guides & Student Sheets
Our kits and modules provide you with everything you need so you can open, review, and teach the material confidently the next day.
- Comprehensive Teacher Guide with background information, detailed instruction, example data and answers
- Student Sheets with age appropriate background information, full procedure(s), and analysis items
- Materials necessary for the investigation (beyond common classroom items)
- Safety Data Sheets
Kit Components
- 1 Teacher’s Guide
- 30 Student Worksheets and Guides
- 16 Shakers
- 960 Alleles, plastic, red
- 640 Alleles, plastic, white
Related Products
-
Kit #77HeredityBy germinating hybrid tobacco seeds first in darkness and then in light, students make interesting observations using this challenging kit. Students set up controlled experiments that provide mathematical data to test their theoretical genetic hypothesis about heredity and the factors determined by the environment. They see how a recessive trait becomes evident. Students also...
$108.10 View Details -
Kit #91Natural Selection
In the 1950s, Oxford University scientist Dr. Bernard Kettlewell studied the changes in England's peppered moth population. Over a hundred year time period, the population of peppered moth shifted from being primarily light-colored moths to dark-colored moths. Dr. Kettlewell reasoned that predatory birds fed on more light-colored moths because they were more easy...
$83.95 View Details -
Kit #902SGenes, Mutations, Evolution, and Sickle Cell
In Part 1, students follow the inheritance of a hemoglobin mutation through two generations. Students identify patterns in their data and investigate the cause-and-effect relationship between environmental conditions (incidence of malaria, survival rates, and resource availability) and the frequency of a trait in a population. Based on their data collection and analysis, students construct explanations...
$104.45 View Details -
Kit #912SModeling the Inheritance of Traits
Students model the diversity of offspring possible from two parents and discover patterns of inheritance other than strict dominant/recessive traits. These patterns help them model and explain the wide variation that can result from sexual reproduction and explore the cause-and-effect relationships for additional traits of the critters.
$212.15 View Details -
Kit #1270Investigating Human Heredity
An excellent introduction to the science of genetics, this enjoyable Lab-Aid contains four simple and easy-to-follow investigations. Students study selected human traits that are controlled by a single pair of genes and then expand that study to include their lab partners, classmates and family members. The investigations begin by having students determine their phenotypes...
$74.55 View Details -
Kit #904SNatural Selection & Antibiotic-Resistant Bacteria
Students use a model to explore the cause-and-effect relationship between inappropriate use of antibiotics and the phenomenon of the evolution of antibiotic resistance. This model is suitable when investigating bacterial infections in humans and other organisms, including livestock and pets. As they model the effects of antibiotics on the population of disease-causing bacteria they...
$100.80 View Details
