Answer questions 36, 37, 41, 42, and 44. Answer ALL questions. Please and thank
ID: 218138 • Letter: A
Question
Answer questions 36, 37, 41, 42, and 44. Answer ALL questions. Please and thank you
36. Which actogram shows a phase delay, a Day #Actogram A -4 phase advance, or no change in phase after a light pulse? Explair. (Reminder: A change in phase means a displacement of the onset of activity) ActogramB Actogram C -3 -1 0 37. The animal in actogram A received a light D pulse during the middle of its subjective 1 day. Would a light pulse late in the subjective night have caused the same result? If not, which actogram could represent this scenario. (Reminder: We can only talk about subjective day and subjective night when an animal is free-running. The subjective day is when the SCN thinks is the daylight segment of the day, and the subjective night when the SCN thinks is the dark segment of the day). 2 Pulse 5Explanation / Answer
36) In a diurnal organism actograms of a behavioral rhythm under various lighting conditions, also their impacts in the locomotor activity rhythm expression. The black blocks indictaes the locomotor activities bouts; the clear and the shaded areas shows the light or dark conditions, respectively.
A ---- no change.
B----- phase delays
C-----advances of the activity rhythm
41) SCN damage eradicates many circadian rhythms, involving rhythmic locomotor activity. Various studies shown that the SCN codes the rhythmic behavior period. Such as, SCN graft transplant into an lesioned animal with SCN reestablish its activity rhythm of locomotion with an interval similar to the donor animal also the neural activity interval in SCN transplant from circadian mutants relates with their free-running periods.
43) Germ-free mice are mices which have no living microorganisms on them. Those animals are arised between germ-free isolators to manage their exposure to parasitic agents like viral, bacterial. If common microbiota strains are brought in to a germ-free animal, it generally is said to as a gnotobiotic animal.