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

This site from the University of Connecticut is Kent Holsinger's site on The Hardy-Weinberg Principle. A great site to check out on the subject, with links to additional information, including: derivation of the Hardy-Weinberg Principle,...

[Free Registration/Login may be required to access all resource tools.] Explore the genetics research conducted by biologist Gregor Mendel and understand the significance of alleles on genes.

Do you know the difference between population genetics and quantitative genetics? This webpage examines both population genetics which concentrates on frequencies of alleles and genotypes and quantitative genetics which deals with the...

Learn about the principle of dominance as you watch animations showing Mendel's experiments with pea plants. Find out what happened when he crossed plants that produced green seeds with those that produced yellow seeds.

This lesson focuses on genetic inheritance including defining key terms such as chromosomes, alleles, DNA, genes, genome, and more. Links to a video and a test are provided.

A simulation where students flip coins to mimic how parents pass genetic traits to their offspring through heredity. This activity also illustrates the difference between dominant and recessive genes, and how they interact with each...

Try your hand at mating dragons to learn about genetic recombination, meiosis, and inherited traits. Understand how chromosomes separate in meiosis with a science animation. Then change alleles for the dragons to see what happens to...

Activity Overview Use the SciTools App to simulate a Punnett square. Make predictions about genetic crosses. Learn about the following concepts; genes, alleles, dominant alleles, recessive alleles, homozygous individuals, heterozygous...

This explanation of genetic drift is straightforward and easy to understand. Illustrations are provided to help visual learners

These pages are part of a site called Evolution that accompany a textbook by the same name. Mark Ridley is the author. This section has an advanced discussion of determining allele and genotype frequencies using the Hardy-Weinberg ratio.

A Java simulation of genetic drift where users can select a starting allele frequency, population size, and a maximum number of generations. Simulation gives a graph that shows allele frequency versus generation number.

Our genes are inherited from our parents, and the different combinations of these genes make us unique. Genetic inheritance controls the characteristics of all living things. This lesson focuses on the inheritance of biological sex in...

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.

This site explains how to determine the chances of inheriting certain traits from our parents. It gives mathematical examples and exercises.

This site is provided by the University of Arizona and it gives great information on the subject. Good collection of dihybrid crosses which exemplify the issue of independent assortment. Work these once you think you've mastered th concept.

Mendel's second law and how he arrived at it through his experiments. Includes vocabulary and examples.

This is a college level lecture on genetic drift, complete with mathmatic formulae, includes special links.

[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...

A multiple-choice quiz on the mechanisms of evolution.

Take this interactive quiz over Mendelian and molecular genetics, then review your score and any missed questions at the end.

[Free Registration/Login may be required to access all resource tools.] Introduction to macroevolution, microevolution, and population genetics.

This resource explains Mendel's first law (Law of Segregation) in detail. Includes Mendel's original experiments with results and conclusions.

A quick, five question multiple-choice quiz assessing complex patterns of human inheritance.