This site from Palomar College contains an interactive practice quiz containingfour questions on major concepts regarding gene flow. A great learning tool.

Psychology is designed to meet scope and sequence requirements for the single-semester introduction to psychology course. The book offers a comprehensive treatment of core concepts, grounded in both classic studies and current and emerging research. The text also includes coverage of the DSM-5 in examinations of psychological disorders. Psychology incorporates discussions that reflect the diversity within the discipline, as well as the diversity of cultures and communities across the globe.Senior Contributing AuthorsRose M. Spielman, Formerly of Quinnipiac UniversityContributing AuthorsKathryn Dumper, Bainbridge State CollegeWilliam Jenkins, Mercer UniversityArlene Lacombe, Saint Joseph's UniversityMarilyn Lovett, Livingstone CollegeMarion Perlmutter, University of Michigan

By the end of this section, you will be able to:

Explain the basic principles of the theory of evolution by natural selection
Describe the differences between genotype and phenotype
Discuss how gene-environment interactions are critical for expression of physical and psychological characteristics

Watch how NJ high school students apply basic principles of molecular biology to solve real research problems, and publish their own genome research at GenBank, the international genomic sequence database.

What is your idea of the perfect tomato? Learn about the principles of selective breeding and genetic modification and their contribution to the quest for tomato perfection.

In this video segment adapted from NOVA scienceNOW, learn about RNAi's potential to treat a wide range of genetic and infectious diseases.

This video segment from Kentucky Life describes how scientists control pollination of one of the few remaining American chestnut trees to develop blight resistant trees.

The discovery of restriction enzymes and their applications in DNA analysis has proven to be essential for biologists and chemists. This lesson focuses on restriction enzymes and their applications to DNA analysis and DNA fingerprinting. Use this lesson and its associated activity in conjunction with biology lessons on DNA analysis and DNA replication.

In this video segment from NOVA scienceNOW, meet researchers who are studying obesity and trying to understand the role that hormones and genetics can play in regulating appetite. [3:25]

An active problem-based assignment that uses the Genbank database to teach the basics of molecular biology and molecular evolution

Mitch Sogin analyses the genes of a sponge in his search for the origin of animals. In order to sequence the genes, he extracts them from the cells. We see the threads of DNA in a test tube. He compares a similar gene found in all the sequences in the animals he tested. Over time small mutations occur in all genes. The more closely related the animals are, the more similar is the code in a shared gene. He created a family tree by comparing the number of changes in the code. The sponge was at the bottom because its gene had the fewest changes. [8:09]

All the cells in all animals have a complete set of genes with the instructions for building an organism. Working with mutations in fruit flies, scientists have found a group of regulatory genes called Hox genes that signal other genes in sequence to build the body of an animal. All animals except sponges have Hox genes. [6:04]

The scientific fields of paleontology, embryology, anatomy, and genetics have all contributed to a new view of the evolution of the animal kingdom. [3:42]

An interactive lecture that uses flash animations showing the researcher and their experiments that were used to develop the basic concepts in Mendelian genetics. Includes multiple choice questions students can answer in class.

Imagine something small enough to float on a particle of dust that holds the keys to understanding cancer, virology, and genetics. Luckily for us, such a thing exists in the form of trillions upon trillions of human, lab-grown cells called HeLa. But where did we get these cells? Robin Bulleri tells the story of Henrietta Lacks, a woman whose DNA led to countless cures, patents, and discoveries. [4:26]

Laurence Moran discusses one of the most important mechanisms of evolution, Random Genetic Drift.

Marilyn Havlik leads students through a simulation of the Hardy-Weinberg Principle to develop their understanding of population genetics. [13 min, 59 sec]

This activity uses DNA sequences, protein sequence, and chromosome-density maps to re-trace the ancestry of humans and some of their closest relatives.