Learning Exercise
Gene expression patterns in E. coli
Students are asked to predict which kinds of E. coli genes might be expressed under one set of conditions and not under an alternate set of conditions.
Course: Microbiology, molecular biology
- Material:
- Microarray technique animation
- Date last modified:
- January 8, 2002
- Created by:
- Judith Kandel
- License:
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An animation of how the DNA microarray technique is applied to studies with Herpes simplex virus see more
Exercise
Using E. coli as an example, suggest a possible role for a gene that is
expressed:
In the presence of oxygen and not in the absence of oxygen
In the absence of oxygen and not in the presence of oxygen
During the stationary phase and not during the log phase
During log phase and not during stationary phase
In enriched media and not in minimal medium
In minimal medium and not in enriched medium
In the presence of lactose but not in its absence
In the presence of tryptophan but not in its absence
Explain your answers.
expressed:
In the presence of oxygen and not in the absence of oxygen
In the absence of oxygen and not in the presence of oxygen
During the stationary phase and not during the log phase
During log phase and not during stationary phase
In enriched media and not in minimal medium
In minimal medium and not in enriched medium
In the presence of lactose but not in its absence
In the presence of tryptophan but not in its absence
Explain your answers.
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Learning Objectives
To demonstrate knowledge about E. coli by applying it to a research question