Mueller et al. created a strain of mice that lacked the receptor that normally responds to a bitter substance called Cyx. The mice that did not have this receptor _____.

Question

Quizplus · Accepted Answer

Since the mice lacked the receptor that responds to Cyx specifically, they would not be able to taste or detect Cyx and therefore would not avoid it. They may still be able to detect and avoid other bitter substances, but there is no information provided to support this possibility. The answer cannot be A or D because the question only specifies the lack of response to Cyx, not all bitter substances or specifically PTC. The answer cannot be B because it implies that the mice would only avoid Cyx and not other bitter foods, but there is no evidence to support this claim.

Mueller Et Al