Interactive pea plant experiment allows users to breed their own hybrid pea plants. Pea color and pea shape are the two attributes generated in this interesting simulation.

Find out what happened when Mendel crossed two hybrid pea plants. The animations do a good job explaining why these crosses produce a 3:1 ratio of traits.

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".

Understand why Gregor Mendel was the father of the field of genetics, which seeks to explain how traits are passed on from one generation to the next.

This is a group of Mendelian Genetics exercises that are designed to show the evolution of a trait within a population. The site covers instruction in calculating genotypic and allelic frequencies, determining dominance, the...

Historical perspective on Mendel's contribution. Spends a little time setting up what the current beliefs of Mendel's day were and how he changed things with what he did.

This set of seven activities will proved a thorough review of Mendel's work. The interactive experiments are easy to follow and drive home the concepts.

This site from Palomar College provides an online practice quiz includes history as well as some of the genetics. Includes feedback. A great learning and practice site.

Students will explore Gregor Mendel's laws of genetics in this lesson. Students will be paired in male and female groups. If girls and boys can't be evenly divided, same sex students can be paired to represent research scientists....

[Free Registration/Login may be required to access all resource tools.] Another exception to Mendel's rules is polygenic inheritance, which occurs when a trait is controlled by more than one gene. This means that each dominant allele...

The site promotes the importance of Morgan and his experiments in genetics with fruit flies on the field of biology.

An overview of the life of scientist Gregor Mendel discusses his early life as a professor, his experiements with genetics, his research in other scientific areas, and his later years.

This animated lesson will explain how genes are inherited in pairs, one from the mother and one from the father.

Students learn about patterns of inheritance including genotype and phenotype, and then learn about the inheritance of autosomal dominant and recessive and sex-linked genetic disorders.

[Free Registration/Login may be required to access all resource tools.] In all of Mendel's experiments, he worked with traits where a single gene controlled the trait. Each also had one allele that was always dominant over the recessive...

Learn about Thomas Hunt Morgan's experiments with the fruit fly (Drosophila melanogaster) as a model system.

Students use this article to identify how probability is used to predict outcomes of genetic crosses.

[Free Registration/Login may be required to access all resource tools.] A pedigree is a chart that shows the inheritance of a trait over several generations. A pedigree is commonly created for families, and it outlines the inheritance...

[Free Registration/Login may be required to access all resource tools.] Natural selection acts on the phenotype (traits or characteristics) of an individual. On the other hand, natural selection does not act on the underlying genotype...

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

This site explores the role genetics plays in making you look the way that you do. Content includes fun facts and a classroom experiment.

This lesson will explain how to use a Dihybrid cross when determining multiple genetic traits at once. It is 2 of 4 in the series titled "Dihybrid Cross."

This lesson will explain how to use a Dihybrid cross when determining multiple genetic traits at once. It is 3 of 4 in the series titled "Dihybrid Cross."

This lesson will explain how to use a Dihybrid cross when determining multiple genetic traits at once. It is 4 of 4 in the series titled "Dihybrid Cross."