If you are going to trust the results that you get from an experiment, you have to ensure that: 1. You know what will happen under baseline, or standard conditions (a negative control); and 2. Your results are measurable, if you get them using a predictable and reliable way (a positive control). Some experiments require multiple controls of each general type to be truly informative. Specific definitions for specific controls are dependent on each, unique experiment.
So, if you were designing an experiment to see if an organism was genetically modified, what kind of controls would you include to ensure your results told you something you could trust? Why? What do each of those controls tell you?
If you are going to trust the results that you get from an experiment, you have to ensure that: 1. You know what will happen under baseline, or standard conditions (a negative control); and 2. Your results are measurable, if you get them using a predictable and reliable way (a positive control). Some experiments require multiple controls of each general type to be truly informative. Specific definitions for specific controls are dependent on each, unique experiment.
So, if you were designing an experiment to see if an organism was genetically modified, what kind of controls would you include to ensure your results told you something you could trust? Why? What do each of those controls tell you?
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