Ever wonder what lurks inside your mouth? A sneak peek here. [1:27]
Resource offers a great explanation and animation of the processes of active and passive transport across cell membranes. Requires Adobe Flash.
A close-up look at the fossil records of the stickleback fish. [1:26]
A close-up look of the fertilization of the C. elegans oocyte. [1:12]
Creatures seen by Charles Darwin. [0:24]
The Double Helix is the story of the scientists and evidence involved in one of the most important scientific quests of the 20th century: the discovery of the structure of DNA. [16:53]
This slideshow helps you discover the beginning of embryonic development and how it is fertilized, how it grows, and how it, in turn, becomes a pregnancy. [2:18]
A quick video clip that shows the lactase enzyme produced in the small intestine of infants. It digests lactose by breaking it into glucose and galactose. [0:53]
Peter Skewes-Cox, and Dr. Graham Ruby, both in the DeRisi lab, explain state-of-the-art DNA sequencing and bioinformatic technologies. [6:36]
Follow human geneticist Spencer Wells, Director of the Genographic Project of the National Geographic Society, as he tracks down the genetic changes associated with the ability to digest lactose as adults, tracing the origin of the trait to less than 10,000 years ago, a time when some human populations started domesticating animals. [14:52]
Classroom resources paired with a ten-minute video highlight the groundbreaking research of physical and genetic evolutionary changes in rock pocket mouse populations. [10:31]
Students watch a short animation showing how the pocket mouse adapts and evolves in a changing environment. Includes discussion questions. [0:20]
A brief video explaining the life cycle of the mosquito. [1:16]
Four decades of research on finch species that live only on the Galapagos Islands illuminate how species form and multiply. [15:54] An interactive version of the video with embedded questions for students is available through a link in the text on the main page.
A fantastic interactive laboratory in which transgenic flies are created and used to study circadian rhythms. Excellent supporting information and resources for teachers and students.
Discovery how chemical reactions can fuel scientific discovery. [5:55]
A brief introduction to the four building blocks of DNA. [0:25]
Find out about genetic engineering, and how scientists have found a way to insert new genes into bacterial DNA. [1:12]
A concise overview of what happens when a mutation occurs in our DNA, and how that causes some cancers. [1:06]
Human chromosomes explained in this brief description of human cell biology. [0:47]