Examlex
When a nonpermissive strain of Salmonella was infected with a P22 phage carrying a tetracycline resistance gene, the Salmonella still became resistant at a high frequency. How did this happen and what suggested this was the case?
Multiple Populations
Refers to studying or analyzing data from more than one group or category to compare characteristics or outcomes.
Research Hypothesis
A specific, testable prediction about the expected outcome of a study, based on theoretical knowledge or previous research.
Null Hypothesis
A hypothesis that suggests there is no effect or no difference, and any observed effect is the result of sampling error.
Directly Tested
Refers to a method where the specific skills or knowledge are evaluated through direct assessments or examinations.
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