RNAi Therapy

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

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Running an Agarose Gel

This video adapted from the University of Leicester provides step-by-step instructions for loading samples into an agarose gel and then running the gel to separate DNA molecules according to their size.

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Sequence for Yourself

How do researchers read the tiny As, Gs, Ts, and Cs that comprise DNA? This step-by-step explanation shows you. From NOVA: "Cracking the Code of Life."

The Structure of DNA

This animation adapted from Garland Science Publishing takes a close look at the DNA double helix and its individual components, describing their chemical structures and how they function together to make the DNA molecule unique.

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Switching Genes On and Off

This video segment adapted from NOVA reveals how "junk" DNA helped solve an evolutionary mystery: Why do certain species of fruit flies have wing spots while others don't?

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Talking Bacteria

In this video segment adapted from NOVA scienceNOW, microbiologist Bonnie Bassler shares her discovery that bacteria coordinate group activity by communicating through chemical signals.

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Teaching Evolution Case Studies: Marilyn Havlik

Marilyn Havlik leads students through a simulation of the Hardy-Weinberg Principle to develop their understanding of population genetics.

Using a Micropipette

This video adapted from the University of Leicester demonstrates the proper use of different-sized micropipettes to measure precise volumes of liquid in the lab.

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What’s On My Skin?

In this lesson, based on the Science Friday segment Life on Our Skin, students will formulate a hypothesis about which area of skin on their bodies may have the most or least amount or kinds of bacteria.