Albino Redwoods: Ghosts of the Forest

Pale ghosts that hide amid their gigantic siblings, only a few dozen albino redwood trees are known to exist. In this video from QUEST produced by KQED, track down these elusive phantoms of the forest.

Albino Redwoods: Ghosts of the Forest Audio

Park rangers in the Santa Cruz Mountains are protecting a decades-old secret: albino redwood trees. In this audio report from QUEST produced by KQED, learn about these so-called "ghost trees."

All in the Family

This video from the series Faces of America details the process of documenting family history and tracing lineage back through maternal and paternal lines.

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Animal Cloning 101

Learn about clones and explore the methods scientists use to create clones in the lab in this interactive activity from the Dolan DNA Learning Center.

Can We Slow Aging?

In this video segment adapted from NOVA scienceNOW, scientists discuss a family of genes called FOXO that can significantly extend life span in worms—and in humans.

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Desirable Breeding Traits in Cattle

This video from Nature offers a description of desirable traits in beef and dairy cattle.

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Different Breeds of Cattle

In this video segment from Nature, learn about six different breeds of cattle.

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DNA Detective

In this video from QUEST, learn about the issues of ethics and responsibility that are associated with genetic testing.

The Ethics of Preimplantation Genetic Diagnosis

In this video excerpt from NOVA, learn about the advantages, disadvantages, and ethical implications of preimplantation genetic diagnosis, or PGD, a technique used to screen embryos created through in vitro fertilization for diseases.

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Frenetic Genetics

Students learn about the types of genetic information contained in the human genome – physical traits, behaviors, and propensity for diseases, in this video from Faces of America.

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Gel Electrophoresis

This interactive activity from the Dolan DNA Learning Center illustrates the process of gel electrophoresis, in which DNA fragments are separated by size as they migrate at different rates through a gel matrix.

Gene Control

The development of creatures that appear to have nothing in common is directed by a surprisingly small number of genes. In this video segment, learn about the power of master control genes. Footage from The Secret of Life: "Birth, Sex & Death."

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Gene Inheritance

Students explore the process of meiosis and how genes, including those that cause disease, are passed from one generation to the next.

Geneticist Pardis Sabeti

In this video profile adapted from NOVA scienceNOW, learn about geneticist and rock musician Pardis Sabeti, whose innovative insights into natural selection demonstrated how beneficial mutations spread quickly through a population.

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Genetics: Tour of the Basics

In this interactive activity from the University of Utah, identify different kinds of genetic traits and how they are passed on from generation to generation. View examples of simple and complex trait inheritance.

Genetic Tool Kit

The shared set of genes for body segments, possessed by all animals, are discussed in this video segment from Evolution: "Great Transformations."

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How Cells Divide: Mitosis vs. Meiosis

How exactly does meiosis mix and halve chromosomes? Find out through this feature from NOVA: "18 Ways to Make a Baby," which provides a step-by-step, side-by-side comparison of meiosis and mitosis.

Human Chromosome 2

In this video segment adapted from NOVA: "Judgment Day: Intelligent Design on Trial," learn how modern genetics and molecular biology offer compelling support for evolution. The video features an interview with biologist Ken Miller.

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Human Genome Project

This video segment from NOVA: "Cracking the Code of Life" looks at the meaning and significance of the effort to decode the human genome.

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I Dream of Genome

This lesson, based on the series Faces of America, explores the various types of genetic information contained in the human genome.

Journey into DNA

Travel deep into the human body to see exactly where your DNA resides. From the NOVA: "Cracking the Code of Life" Web site.

Mendel's Laws of Genetic Inheritance

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.

Migration Sensations

This video segment from Faces of America details the process of human migration through haplogroups and shows the haplogroups of some of the series’ guests.

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Modeling DNA Structure

Students explore the structure of the DNA molecule and begin to understand how chromosomes, genes, and the base pairs, sugars, and phosphates of the DNA molecule are related.

A Mutation Story

This video segment describes the role of the sickle cell gene in natural selection. Footage courtesy of the PBS series Secret of Life: "Accidents of Creation."

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One Wrong Letter

This video segment from NOVA: "Cracking the Code of Life" describes the genetics of Tay-Sachs disease.

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A Piece of the Pie

This video from the series Faces of America covers what DNA can tell us about our ethnic identities that regular genealogy might not.

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Reproduction: One Goal, Two Methods

In this lesson designed to enhance literacy skills, students learn about the advantages and disadvantages of the two basic forms of reproduction for the living things that practice them.

Restoration of the American Chestnut

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

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The Reverse Evolution Machine

Dr. David Haussler has created a new method of detecting dinosaur DNA, called ”computational genomics.” In this video from QUEST produced by KQED, learn about this innovative way of discovering dinosaur DNA.

The Role of Genetics in Obesity

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.

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Sickle vs. Normal Cell

Background image of normal disc-shaped red blood cells from the University of Utah. Inset shows sickled red blood cells, curved and rigid, from the Virginia Medical College.

Some Genes Are Dominant

This interactive activity, adapted from the Dolan DNA Learning Center, illustrates how Gregor Mendel used pure-bred yellow and green peas to show that some genes are dominant and others are recessive.