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.
The experiment of Plaxton and his colleagues demonstrated that plants can alter their metabolism in
Graphic display of hypothetical results of a predator removal experiment.
Solar Neutrino Experiment
Example of pre- and posttest Interpretation in an Experiment
Monkey Experiment: Sense of Fairness
Psychology experiment