Examlex
Environmental agents that trigger changes in DNA are called:
Double Blind
A study or experiment design in which neither the participants nor the experimenters know who is receiving a particular treatment, to prevent bias.
Stratifying
The process of dividing a population or sample into subgroups, known as strata, to ensure that research or analysis is more accurate and reflective of the whole.
Blocking
A design technique in experiments that groups units with similar characteristics together to isolate the variable of interest and reduce variation.
Side-effects
Secondary, often undesirable effects of a drug or medical treatment beyond the intended therapeutic effects.
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