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Shows the process of isolating high molecular weight genomic DNA from bacteria. This involves lysis of bacterial cells, dialysis, alcohol precipitation, and spooling DNA onto a glass rod. Then DNA is...
Documents how radioactive nucleic acid probes are used to identify rare sequences of genomic DNA. Genomic DNA, fractionated by agarose gel electrophoresis, is transferred by capillary action onto nylon...
Separating different-sized proteins by electrophoresis is a very common method for characterising recombinant proteins. Shows the preparation of a basic denaturing discontinuous gel. In a separate...
The need often arises to quickly isolate plasmid DNA transformed within bacteria away from genomic DNA and other cellular components. The procedure of lysing the bacteria, documented in the video, is called...
DNA fragments often need to be recovered from the agarose to do enzymatic procedures, however, recovery from agarose can be quite poor. Here DNA is purified away from the agarose by an enzyme called...
These procedures are the basis for many recombinant DNA techniques. Here restriction enzymes are used to specifically cut DNA into smaller, analysable fragments. The results are analysed from photographs of...
Examines the functions of the endocrine system, which is the communications network within the body, the hormonal signals of which originate in the endocrine glands and are disseminated through the...
Explores the biochemical communications network of the human body through a series of animated sequences that trace the structure of neurons and illuminate biochemical impulses. A neurologist discusses the...
Uses animation and X-ray motion pictures to examine the structure of the human body in terms of the skeletal system - that framework of bones whose composition and arrangement support the internal organs and...
Desmond Morris looks at non-verbal communication in the workplace. Body language helps us to appreciate what people are really thinking and feeling and helps us to put our own messages across without...
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Learning on Screen