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Evolution of a Second Gene for β-Galactosidase in Escherichia coli
Mutants of E. coli K12 with deletions of the β-galactosidase gene (lacZ) can reacquire the ability to hydrolyze β-galactosides during prolonged intense selection for growth on lactose. Full lactose competence is restored through a sequence of at least five mutations. Cell extracts of these derived s...
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| Main Authors: | , , |
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| Format: | Artigo |
| Sprog: | Inglês |
| Udgivet: |
1973
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| Fag: | |
| Online adgang: | https://ncbi.nlm.nih.gov/pmc/articles/PMC433609/ https://ncbi.nlm.nih.gov/pubmed/4124306 |
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