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Asked Jun 28, 2019
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What is the purpose of positive and negative controls in an experiment?

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Expert Answer

Step 1

In the field of microbiology, there are various experiments are done to find the microbes. These experiments are gone through various stages of testing and development, so that it can be used in hospital laboratories and research field to find disease-causing pathogens. 

Step 2

In laboratory experiments, the positive and negative controls are important aspects that determine the experiments that are done is valid or not. The positive control is microbe of interest that have undergone various research stages to standardize it, so that is can be used to compare the results with an unknown sample....

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