With the aid of high quality graphics and animations, this program covers three major categories of biological macromolecules: carbohydrates, lipids and the nucleic acids RNA and DNA. It clearly explains the structure and biological roles of each type of macromolecule and examines similarities and differences between them, using many biological examples. The first of two programs on the subject, ‘Macromolecules 1’ is essential viewing for all senior biology students.
Subjects: Biology
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Macromolecules Two: Proteins and Proteomics
Macromolecules Two completes our coverage of biological macromolecules by examining the structure and function of proteins. We also introduce and explain the Proteome. Proteomics, or the analysis of protein structure and protein interactions, is defined and the tools of Proteomics are explained with graphics and footage from a Proteomics laboratory. An example of an application of proteomics, the development of the anti viral drug Relenza, is also examined.
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Genes and Cloning – Cloning, Selective Breeding
There is a lot of controversy around genetic modification of organisms and cloning. This program looks at the way man has modified genomes of plants and animals used for food since the dawn of agriculture. As knowledge of cells and genetics has increased so has man’s ability to alter genomes. Animations show how genetic engineers are now able to construct and insert genes for desirable characteristics into plants and how technology is used to increase numbers of animals with desirable traits and screen out those with disease or lower food yields.
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The History of Evolution Theory
How did life come to be in all the myriad of forms that exist on earth today? In this program we present an overview, from a science viewpoint, of the development of answers to this fundamental question. From Lamarck and The Inheritance of Acquired Characteristics, Darwin’s Origin of the Species, development s by key biologists to recent directions, the program charts the development of evolutionary theory. The main ideas behind Intelligent Design are also examined.
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Gene Technology
This program is about gene technology – the actual techniques used by the scientists producing remarkable breakthroughs in areas like health, agriculture and forensics. The following techniques are covered in depth: polymerase chain reactions; gel electrophoresis; DNA sequencing (in two parts); and genetic modification of organisms.
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Genes and Inheritance: Priests, Peas, Punnets and Pedigrees
This program starts with Mendel, and introduces a number of important concepts, principles and definitions that form the basis of the modern understanding of genetics and inheritance. It covers the use of Punnet Squares looks at gene linkage, sex linkage, and crossing over. It also introduces Pedigree Analyses using examples of autosomal and sex-linked inheritance.
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The Kingdoms
Explains how the electron microscope has enabled scientists to probe the most elemental boundaries of life. Investigates the nature, transmission and harmful effects of viruses and notes the similarities and differences between prokaryotic and eukaryotic cells.
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Systems, Energy and Matter
Examines how living organisms, as open systems, exchange energy and matter with their environment. Explains the absorption, transportation and waste removal of water, minerals and gases in plants and animals.
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Genetics, Stem Cells and Society
An interview with Professor Alan Trounson covering his beginnings in science, his pioneering IVF work and leading role in embryonic stem cell research.
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Matter and Energy on the Move
Examines the movement of matter into and out of living cells across a semipermeable membrane and the role energy plays. The concepts of diffusion, osmosis, concentration gradients, and active and passive transport are explained and demonstrated.