Examlex
In humans, 23 pairs of chromosomes are matched containing similar genes in almost identical positions and sequence, reflecting the distinct blueprint of the biological mother and father.
Spontaneous Improvements
The unexpected or unplanned enhancements in performance or conditions without specific intervention.
Longitudinal Study
Research that follows the same subjects over a period of time, observing changes or developments in them.
Untreated Participants
Individuals involved in a study or clinical trial who have not received the experimental treatment, intervention, or therapy, often serving as the control group.
Placebo
A chemically inert substance that produces real medical benefits because the patient believes it will help her.
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