Examlex
Lethal recessive mutations are not eliminated from a population because they can be "hidden" in symptom-free individuals also carrying dominant alleles.
Experimental Group
The group in an experiment that receives the variable being tested, as opposed to the control group.
Control Group
A group in an experiment that does not receive the experimental treatment and is used as a benchmark to measure how the other tested subjects do.
Random Sample
A selection process where each member of a population has an equal chance of being included in the sample, minimizing bias.
Population
In statistics and demography, a comprehensive group of individuals or items that share one or more characteristics from which data can be gathered and analyzed.
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