In the neurotransplantatio n experiment by Ralph and colleagues,
the suprachiasmatic nuclei (SCN) were transplanted from the fetuses of mutant hamsters that had abnormally brief free-running sleep-wake cycles into normal adult hamsters whose sleep-wake cycles had been abolished by SCN lesions. The transplants initiated __________ sleep-wake cycles in the recipients.
A) 24-hour
B) 24-hour free-running
C) 25.5-hour free-running
D) 20-hour free-running
E) reversed
Question 2
There is good evidence that the internal circadian clock is located in the
A) suprachiasmatic nuclei.
B) raph nuclei.
D). basal forebrain.
E) optic nerves.C) caudal reticular formation.
Aerial and close-up views of a large biodiversity experiment in Cedar Creek, Minnesota. Each of the
The Meselson-Stahl Experiment
Humidity Measurement and Gas Flowrate Experiment
Monkey Experiment: Sense of Fairness
The Taylor–Woods–Hughes experiment
The Lederberg–Zinder experiment using Salmonella