Examlex
In conditioned fear research with rats,which of the following might be used by the experimenters as a conditioned response?
Chemical Marks
Biologically significant molecules that attach to DNA or proteins and play a role in gene expression and regulation.
DNA
Deoxyribonucleic acid, a molecule containing the genetic instructions used in the growth, development, functioning, and reproduction of all known living organisms and many viruses.
Rooting Reflex
An innate reflex in newborns, where they turn their head toward anything that strokes their cheek or mouth, searching for the object by moving their head in steadily decreasing arcs until the object is found.
Cheek
The fleshy part of either side of the face below the eye and between the nose and ear.
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