Suppose You Have Two Groups of Hamsters: One Group Consisting

question 228

Multiple Choice

Suppose you have two groups of hamsters: one group consisting of animals with short circadian periods and the other consisting of animals with long circadian periods.The suprachiasmatic nuclei (SCN) of the long-day hamsters have been destroyed and short-day fetal SCN tissue has been transplanted into the lesioned tissue.What will be the result?

• A) The long-day adults will remain arrhythmic.
• B) The long-day adults will demonstrate long-day rhythms.
• C) The long-day adult will demonstrate short-day rhythms.
• D) The rhythms of the adults will become entrained to the laboratory lighting.
• E) The long-day adults will exhibit free-running rhythms.

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