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Degger [83]
3 years ago
9

What is the negative control and positive control in a presumptive blood test?

Biology
1 answer:
gulaghasi [49]3 years ago
6 0

Answer:

Test a known bloodstain as a positive control and a blank (filter paper) as a negative control (see interpretation of results to determine a positive and negative result).

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to understand the levels of biological organization, match each of the labels with the correct illustration. Place your cursor o
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