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...

Upper level discussion of several of Mendel's experiments and laws.

Overview of the basic concepts behind evolution, such as gene variation and adaptations.[Free Registration/Login may be required to access all resource tools.]

[Free Registration/Login may be required to access all resource tools.] Explains how natural selection favors certain traits in a population so that the organism adapts to its environment, and that changes in the genes over time cause...

Students read the books like I Am the Dog. I Am the Cat by Donald Hall and Joyful Noise by Paul Fleischman and read the lyrics while listening to the song "Shallow End of the Gene Pool" by the Austin Lounge Lizards. Then students learn...

Student teams research human behavior and explore whether traits are inherited only by genetic inheritance or if environmental factors can play a role as well.

Play the role of a scientist and piece together the genetic puzzle to determine the gene responsible for a disorder.

Article reviews Mendel's basic model of inheritance then provides an overview of variations on Mendel's laws, including multiple alleles, incomplete dominance, co-dominance, pleiotropy, lethal alleles, sex linkage, genetic interactions,...

Explains and gives examples of polygenic inheritance.

In this activity, you will use an alien model to demonstrate how genes or physical traits are passed on from parents to their offspring.

Find out how epigenetic tags that tell genes whether to turn on or off in their lifetime, act as a cellular memory.

Explains basic genetics concepts, including genes, DNA, chromosomes, sex chromosomes, how traits are inherited, genetic variation, cloning, and stem cells.

An indepth introduction to genetics as a whole with sample lessons, vocabulary, and bibliography. From the Yale-New Haven Teachers Institute.

Learn about the development of transgenic animals and some potential applications. The field of transgenic animals is very young and still has many hurdles to cross.

This site explores what Hardy-Weinberg Equilibrium is, and how teachers can explore this topic in their classrooms. Content includes background information on this topic, as well as numerous learning activities.

First, students toss coins to determine what traits a set of mouse parents possess, such as fur color, body size, heat tolerance, and running speed. Next they use coin tossing to determine the traits a mouse pup born to these parents...

This site includes a lesson plan designed to teach students how genetic traits are passed down from parents to offspring. Students will explore such concepts as random selection, chrosomes, genotypes and phenotypes using jelly beans and...

Students explore the relationships between genetics, biodiversity, and evolution through a simple activity involving hypothetical wild mouse populations. First, students toss coins to determine what traits a set of mouse parents...

Read about phenylketonuria and the tests used to diagnose it in those who might have inherited this recessive trait.

In a class discussion format, the teacher presents background information about basic human genetics. The number of chromosomes in both body cells and egg and sperm cells is covered, as well as the concept of dominant and recessive...

This site explains genetic beliefs before and after Mendel, and also includes a section on Mendel himself and his experiments, entitled, "The Monk and his Peas".

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...

This college-level biology reference book introduces the study of heredity and genetics using diagrams and descriptive illustrations.

This interactive activity, adapted from the Dolan DNA Learning Center, uses Punnett squares to illustrate Mendel's laws of inheritance and how a particular gene combination results in a 3-to-1 ratio of dominant-to-recessive traits.