Explores what happens when things go wrong during mitosis and meiosis. Presents examples of chromosomal abnormalities and techniques used to determine types of alterations. Reveals how people with Down’s syndrome are able to lead fulfilling lives.
Languages: English
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Electrochemical Changes – Resource Correlation Guide – Unit 2
Provides additional information, experiments and problems on concepts presented in the video programs.
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Development of Molecular Genetics
Traces the research leading to the discovery of the structure of DNA by Watson and Crick. Replicates the experiment of Frederick Griffith in his search for DNA. Illustrates how X-ray crystallography and NMR spectroscopy reveal the structure of DNA.
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Equilibrium, Acids and Bases in Chemical Changes – Resource Correlation Guide
Provides additional information, experiments and problems on concepts presented in the video programs.
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DNA Replication
Demonstrates the isolation of DNA. Examines the composition of nucleic acids within DNA and the process of DNA replication. Addresses how new technologies such as gel electrophoresis further the study of molecular genetics.
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Introduction to Thermochemical Changes
An overview of thermochemical changes as it relates to physical, chemical and nuclear changes. Defines and applies the First Law of Thermodynamics, and explains the terms endothermic and exothermic. Introduces the concept that energy can be measured.
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Embryonic Development and Differentiation
Describes the events that occur once fertilization of the ovum has taken place. Explains the various stages of embryonic development and differentiation using slides and models. Presents theories on various mechanisms that trigger cell differentiation.
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Fetal Development and Birth
Outlines development during each trimester of pregnancy and the hormones involved in regulating fetal development, birth and lactation. Illustrates the mechanism for exchanging nutrients and wastes between mother and fetus.
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Cell Cycle, Mitosis and Cytoplasmic Division
Prepared slides, graphics and simulations examine the various stages of mitosis. Explores the changes in cell division during aging and compares a typical cell cycle to that of a cancer cell. Discusses the detection and various treatments for cancer.
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Meiosis and Gamete Formation
Illustrates the phases of meiosis and explores its importance in maintaining the proper number of chromosomes during gamete formation. Explains how crossing over and nondisjunction increase diversity in the species.