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ERIC Number: EJ937833
Record Type: Journal
Publication Date: 2009
Pages: 5
Abstractor: As Provided
Reference Count: 12
ISSN: ISSN-0021-9266
Evolution in an Afternoon: Rapid Natural Selection and Adaptation of Bacterial Populations
Delpech, Roger
Journal of Biological Education, v43 n3 p129-133 2009
This paper describes a simple, rapid and low-cost technique for growing bacteria (or other microbes) in an environmental gradient, in order to determine the tolerance of the microbial population to varying concentrations of sodium chloride ions, and suggests how the evolutionary response of a microbial population to the selection pressure of the saline can be measured. This system can be used to quantify and follow the consequences of natural selection on successive generations of bacteria. A list of suggested investigations appropriate for post-16 school pupils is provided. (Contains 9 figures.)
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Publication Type: Journal Articles; Reports - Descriptive
Education Level: Adult Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A