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Topic: Developmental Biology

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Resource	Grade Level	Media Type
Animal Body Plans: Homeobox Genes The homeobox genes that define the basic body plan of mice and fruit flies are illustrated in this graphic from The Human Evolution Coloring Book by Adrienne Zihlman. The accompanying article describes how these genes act as "molecular architects" in all animal species.	9-12	PDF Document
Blood Vessels Help Tumors Grow In this video segment, adapted from NOVA, Dr. Judah Folkman uses the scientific method to discover how cancer cells induce the formation of new blood vessels, which in turn nourish those cancer cells.	6-12	QuickTime Video
Cell Differentiation In this video segment from The Secret of Life school video, "Sex and the Single Gene" follow as a single fertilized egg cell divides, differentiates, and assembles into the tissues and organs of a new organism.	6-12	QuickTime Video
Cell Division In this interactive activity adapted from the Exploratorium, explore the step-by-step process by which an animal cell divides to make more cells.	7-10	Flash Interactive
Cell Transcription and Translation In this interactive activity adapted from the University of Nebraska, learn how and where transcription and translation occur within a cell and observe both processes in detail.	9-12	Flash Interactive
Dance of Development Watch the "dance" of development as a zebrafish egg divides and differentiates on its way to becoming an embryo in this interactive activity adapted from the Exploratorium.	9-12	Flash Interactive
The Embryo Takes Shape This video segment from NOVA: "Life's Greatest Miracle" explores the developmental process of an embryo beginning just two weeks after fertilization.	9-12	QuickTime Video
Evolution of the Eye Zoologist Dan-Erik Nilsson demonstrates how the complex human eye could have evolved from simple light-sensitive cells. From Evolution: "Darwin's Dangerous Idea."	9-12	QuickTime Video
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."	6-12	QuickTime Video
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."	6-12	QuickTime Video
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.	6-12	Flash Interactive
Life Cycle of a Seed Plant In this interactive activity adapted from the University of Alberta, learn about each step in the life cycle of a seed plant.	6-12	Flash Interactive
On Human Cloning Three cloning experts share their opinions in these interviews from the NOVA "18 Ways to Make a Baby." Web site.	9-12	HTML Document
Plants-in-Motion While we tend to think of plants as stationary, they are in constant, though very slow motion, as they respond to environmental factors. Watch plants move in time-lapse videos in this interactive activity adapted from Indiana University.	K-12	Flash Interactive
Preimplantation Genetic Diagnosis This video segment from NOVA: "18 Ways to Make a Baby" describes a technique used to determine the health of a developing embryo.	9-12	QuickTime Video
RNAi Discovered In this video segment adapted from NOVA scienceNOW, learn how RNAi, a mechanism that has evolved in cells to prevent viral infection, was discovered and how it works.	9-12	QuickTime Video
Stem Cells: Seeds of Hope? This video explores the basic scientific and ethical questions surrounding the use of stem cells in medical research.	9-12	QuickTime Video