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Genetic control of metabolism - Coggle Diagram
- Genetic control of metabolism
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Mutagenesis
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However, mutant strains are often genetically unstable, and so may undergo reversed mutation (i.e. revert to the less useful wild-type state).
Therefore, before the improved strain is used in the industrial fermenter, it must be monitored to ensure that it is still in its mutated state.
Breeding programmes
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Here, plasmids or pieces of chromosomal DNA are transferred from one strain to another.
New strains are also produced by bacteria taking up and incorporating DNA fragments from their surroundings.
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Plasmids as Vectors
- Plasmids are Circular, self-replicating form of DNA
found in bacteria.