Examlex
Which of the following enzymes does HIV use to synthesize DNA on an RNA template?
Population
The entire group of individuals or instances about whom the study is focused, from which a sample may be drawn for analysis.
Census
A comprehensive collection and analysis of data about every member of a population at a specific point in time.
Sample
A subset of a population selected for measurement, observation, or questioning to provide statistical information about the population.
Postal Sampling Frames
The process of using postal addresses as a source or list from which to draw samples for research studies.
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