Examlex
Which of the following functional groups is capable of regulating gene expression?
Improve
To make or become better; to enhance the quality, value, or performance of something.
Positive Reinforcer
A stimulus which, when presented after a behavior, increases the likelihood of that behavior occurring again in the future.
Negative Reinforcer
An unpleasant or adverse stimulus that, when removed after a behavior, increases the likelihood of that behavior being repeated.
Mother
A female parental figure who may give birth to, adopt, or rear a child in the role of providing care, nurture, and protection.
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