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Showing 1 - 25 of 62 results
Classroom Resource
The poster from the 2008 Holiday Lectures on Science, Making Your Mind: Molecules, Motion, and Memory. It illustrates the structure and function of a neuron, including how it transmits electrical and chemical signals.
Classroom Resource
The poster from the 2007 Holiday Lectures on Science, AIDS: Evolution of an Epidemic. It shows each stage of the HIV life cycle and highlights points in the cycle that have been targeted by anti-retroviral drugs.
Classroom Resource
A hands-on activity in which students construct models of sickle-cell hemoglobin fibers inside red blood cells to illustrate how changes in the structure of a protein can affect cell shape. Students are then asked to relate these changes to disease symptoms.
Video Clips
A demonstration by Dr. Meyer showing how a balance of molecular elements trigger genetic pathways that determine the sex of a C. elegans worm.
Video Clips
Time-lapse microscopy showing cell division from 1 to 2 to 4 cell stages in C. elegans with fluorescent chromosomes.
Video Clips
Video of the fertilization of the C. elegans oocyte, the fusion of the egg and sperm nuclei, and the egg laying.
Video Clips
Video closeup of the C. elegans sperm that moves like an amoeba.
Lectures
Dr. Hudspeth will begin by discussing how simple organisms—such as bacteria—have the capacity to detect and react to a stimulus.
Lectures
Dr. Nathans will discuss how the visual process involves the detection of light by photo-receptors in the retina.
Lectures
Dr. Hudspeth will explain the basis for the ear’s remarkable ability to detect sound through the hair cell, the sensory receptor found in the inner ear.
Lectures
Dr. Nathans will complete the lecture series by clarifying what is known about the brain’s ability to process and integrate various elements of the visual system, such as color, motion, and depth.
Lectures
Although there are numerous kinds of cancer, all stem from alterations that allow cell division to outstrip cell demise.
Lectures
The identification of hundreds of genes involved in the formation and spread of cancer is leading to promising new methods for diagnosis, prevention, and treatment.
Lectures
Mutations in key genes can lay waste to the nervous system. By studying large families predisposed to developing these genetic disorders, scientists can identify the responsible altered gene.
Lectures
Girls with Rett syndrome develop normally for about 18 months and then begin to regress. With the help of affected girls and their families, Dr. Zoghbi and her collaborators searched for the gene responsible for this neurological disorder.
Lectures
Dr. Friedman introduces the genes and circuits that control appetite, including the key role of leptin.
Lectures
Dr. Evans reviews how PPARs regulate body weight by controlling whether fat is burned or stored.
Lectures
A Q&A session on obesity and related issues, with the lecturers and students attending the Holiday Lectures on Science.
Lectures
An overview of embryonic development, the progressive differentiation of cells, and properties of embryonic stem cells.
Lectures
The role of stem cells in regeneration, and ongoing research to improve mammalian regeneration potency.
Lectures
In cloning, a cell's genetic machinery is reprogrammed. Can we similarly coax stem cells to become specific cell types?
Lectures
Finding factors to reverse age-related loss of cell maintenance, and some examples of stem cell therapies.
Series
Why has it been so hard to develop a vaccine against HIV? How are new medicines revolutionizing AIDS treatment? Can AIDS be cured?
Lectures
How a nerve cell gets its identity, sends axons, and makes connections with other cells.
