Experiments with Genetically Altered Mice Showed That the Mice Would

question 62

Multiple Choice

Experiments with genetically altered mice showed that the mice would consume abnormally high amounts of bitter-tasting compounds in water after their

• A) hormone receptors for digestive hormones were reduced or eliminated, showing that bitter tastes are reinforced by digestive responses.
• B) salt-taste cells were altered to express receptors for bitter tastants, suggesting that animals have unregulated salt appetites.
• C) visual sense was reduced or eliminated, suggesting that mice learn visual cues about bitter tastes.
• D) olfactory sense was reduced or eliminated, suggesting that mice learn odor cues about bitter tastes.
• E) sweet-taste cells were altered to express receptors for bitter tastants, suggesting that the sensation of taste depends only on which taste cell is stimulated.

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