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Chapter 16 : An Accidental Evolutionary Biologist

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An Accidental Evolutionary Biologist, Page 1 of 2

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Abstract:

In Darwinian terms, mutations can be either beneficial, neutral, or deleterious. To date author have seen growth advantage in stationary phase (GASP) mutants consume amino acids and proteins better than their unevolved siblings. The research now focuses on understanding the mechanisms that lead to the generation of this genetic diversity and the myriad ways cells can increase their relative fitness. According to author the GASP phenomenon allows us to do something almost as good: one can set up many, many tape players running in parallel and can create true microcosms, tiny universes, where in the beginning all conditions are identical. Experiments like these allow us to explore the mechanisms that lead to the generation of genetic diversity, the raw material of natural selection, and how evolutionary processes, as envisioned by Darwin, continue to shape the biosphere.

Citation: Finkel S. 2012. An Accidental Evolutionary Biologist, p 115-121. In Kolter R, Maloy S (ed), Microbes and Evolution. ASM Press, Washington, DC. doi: 10.1128/9781555818470.ch16

Key Concept Ranking

Stationary Phase
0.8359819
Test Tubes
0.7698776
Bacterial Evolution
0.6836543
Death Phase
0.6151565
Lag Phase
0.5678368
Natural Selection
0.56089383
Nutrient Agar
0.53333336
0.8359819
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