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Select an Appropriate Control Group
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AP Biology
APB.019 Select an Appropriate Control Group
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A researcher tests whether adding a fluorescent protein tag changes where a protein localizes in cells. Which control best isolates the effect of the tag?
A
Cells expressing a tagged unrelated protein
B
Cells expressing the tagged protein at a much higher level
C
Cells expressing the untagged version of the same protein under the same promoter
D
Cells with no protein expression and a different stain
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