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This episode explores selective breeding, a technique that dates back 11,000 years. It looks at the mechanisms by which mating can mix up favourable traits and what would happen if a studio audience were only allowed to mate with each other. What will their offspring look like five generations down the line and which characteristics will have survived?
The programme also investigates what some might consider a natural and more efficient extension of this: transgenic modification. How can we add genes to an organism to allow it to express new proteins? Can regular bacteria be made fluorescent green by adding a jellyfish gene?
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