Science 4 Inquiry
Genetics, Genetics, and More Genetics: Exploring Independent Assortment and Non-Mendelian Genetics
Two individuals share 99.9 percent of their genetic codes, yet diversity is observed everywhere. Young scientists learn about diversity through hands-on activities and an experiment. They apply the concepts of independent assortment and...
Curated OER
Incomplete Dominant and Codominant Traits Worksheet
A two-page instructional activity provides seven Punnett squares for practice in determining genotypes and phenotypes. Each is an example of incomplete dominance or codominance. After your bright biologists have mastered Punnett squares,...
Curated OER
Were the babies switched? – The Genetics of Blood Types
Human biology or genetics learners apply their knowledge to a unique situation: two newborn baby girls being possibly switched in the hospital. The engaging activity ends with a Punnett squares assignment in which pupils evaluate whether...
Biology Junction
Mendelian Genetics
Over the course of seven years, Gregor Mendel grew more than 28,000 pea plants. The large amount of data he collected led him to postulate the rules of genetics as we understand them today. Scholars learn about Mendel, genetics, and...
Serendip
Soap Opera Genetics – Genetics to Resolve Family Arguments
Did she cheat on her husband? Did the hospital switch the babies? Should they have children? As much as this sounds like the plot for a soap opera, all of these questions fit into a single lesson on genetics. Scholars read about three...
Columbus City Schools
Heredity: Traits, Genes, Alleles
If you knew people would pay extra for a bald dragon, could you pick which parents you should breed in order to get the highest number? The unit examines heredity and genetics through breeding dragons, mice, dogs, and tries to figure...
US National Library of Medicine
Genetics in Harry Potter’s World Lesson 2
Can we find the phenotypes and genotypes of magical ability for the characters in Harry Potter? Of course, but first we need to understand incomplete or blended dominance, co-dominance, multiple alleles, and regulatory genes. This...
Curated OER
Activity: Gummy Bear Genetics
Who's your Daddy ... and Mommy for that matter? Given a first-generation group of gummy bear offspring, young scientists must determine which bears are their parents. An activity worksheet covers the differences in genotypes and...
Curated OER
Genetics Practice: Beyond the Basics
What do you get when you cross a purple with a white? Genetics geniuses figure it out with a Punnett square. On this assignment, they must solve crosses for incomplete dominance, codominance, lethal dominance, and sex-linked genes. It is...
Curated OER
Raven Chapter 13 Guided Notes: Patterns of Inheritance
In this short space, it would be impossible to describe the breadth of this seven-page genetics worksheet. Geared toward AP or college biology learners, they explore not only the basic vocabulary and concepts, but also the Law of...
Curated OER
Mendelian Genetics
Although these slides seem full of text, the information is bulleted and clear. There is a list of vocabulary and then two slides to define examples of Mendelian inheritance and rules of probability. The remaining five slides look at...
University of Washington
Toothpick Fish
With colored toothpicks representing genes, youngsters practice passing them through generations of fish and learn about heredity. Consider this as an introductory activity since it does not represent recessive genes with lowercase...
Curated OER
Science Jeopardy
Make reviewing evolution, cell division, genetics, cell structure, and scientific method more fun! Science Jeopardy allows teams to choose a category for the question they will address. If you complete the entire game, learners will have...
Curated OER
Punnett Square Popcorn
In this genetics worksheet, students use the Punnett Square to learn about dominance and codominance in inherited traits. This worksheet has 1 short answer question and 6 problems to solve.
Khan Academy
Khan Academy: Multiple Alleles, Incomplete Dominance, and Codominance
In the real world, genes often come in many versions (alleles). Alleles aren't always fully dominant or recessive to one another, but may instead display codominance or incomplete dominance.
Estrella Mountain Community College
Estrella Mountain Community College: Codominance
Go to the section titled "The Modern View of the Gene" and the first subtitle is about codominance, or "codominant alleles" and defines codominance as well as explaining its effects. Includes a link to the glossary for a direct...
Other
Georgia Perimeter College: Extending Mendelian Genetics
This resource provides a good overview of genetics, including codominance.
CK-12 Foundation
Ck 12: Biology: Non Mendelian Inheritance
[Free Registration/Login may be required to access all resource tools.] Introduction to non-Mendelian inheritance.
BiologyWise
Biology Wise: Dominant and Recessive Traits in Humans
Explains what dominant and recessive traits are and how they work, and provides a list of single gene traits with the degree of manifestation if they are dominant or recessive. Also discusses co-dominance, incomplete dominance, polygenic...
Khan Academy
Khan Academy: Mendelian Genetics Questions
This is a ten-question quiz pertaining to Mendelian genetics.
University of Arizona
University of Arizona: Co Dominant Problem
This site, which is provided for by the University of Arizona, gives an interactive genetics problem dealing with co-dominance. Links are provided throughout this site for additional information on related subjects.
University of Arizona
University of Arizona: Monohybrid Problem Set
This site, which is provided for by the University of Arizona, gives an interactive problem on blood type, which is an example of codominance. Links are provided to access the various subjects covered in this problem set.
BiologyWise
Biology Wise: Codominance Explained With Examples
Explains what codominance is in heredity, and what it looks like in humans, animals, and plants.
Sophia Learning
Sophia: Codominance
This lesson will examine the concept of codominance using blood types as an example.