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Discuss how ideas about stress immunization evolved into the realization that maternal behavior actually plays an important role in mediating the effect of early stress, citing both animal and human research.Beginning with a description of the organization of the retina in terms of the distribution of rods and cones, and their connections to bipolar cells, and then to retinal ganglion cells, explain how an experiment demonstrated retinotopic mapping in the primary visual cortex, and how that mapping is not faithful to the area occupied by the fovea vs. the periphery of the retina.Discuss the evidence in favor of the glutamate and dopamine hypotheses of schizophrenia. Are these ideas mutually exclusive? Explain.Describe the symptoms of patient D.F., including the general location of her lesion, and how that supports the notion that visual processing can be divided into two streams.Using the sight of a scorpion and beginning at the retinal ganglion cells, explain how information is processed by the visual system, the amygdala, and then the amygdala's target brain regions to generate the overt expression, feelings, and hormonal changes that accompany fear. Be sure to mention the "short-cut" and "long-road" visual pathways to the amygdala.Describe how sensory converges on, and is processed by, the amygdala to enable fear conditioning, with a foot shock as a US and a tone as the CS, such that the CS ultimately elicits the hormonal, autonomic, and behavioral manifestations of fear. Use a diagram if necessary.
Explain the role of double helix in complimentary base pairing in DNA replication. What does it mean when we say that the two strands of DNA in the double helix are antiparallel?
Discuss how do cells sense chemoattractants or chemorepllents? Be specific about the molecules involved. Is the cytoskeleton remodeled during cytokinesis?
Two substances in the glass beaker chemically react, and the glass beaker becomes too hot to touch, if the two substances are defined as the system, what constitutes the surroundings.
Explain three physiological differences you would expect betweem two combat- navie soldiers placed on the front line in a war zone if one was given a potent phenylethanolamine
Explain why carcinomas are more common than sarcomas? Describe briefly your favourite new term or concept from this class.
If Mendel chose corn instead of pea plants to conduct his first experiments, what is the maximum number of traits he could have documented in breeding experiments in order to establish his law of segregation (each trait is determined by two factors) ..
The phosphorylation of ADP to form ATP stores approximately 7.3 kcal per mole o ATP. What is the approximate efficiency of cellular respiration for a "mutant" organism that produces only 29 mole of ATP for every mole of glucose oxidized, rather than ..
During swimming there is a large increase in end diastolic volume (EDV) of the heart. This leads to an increase in stroke volume. Explain how the increased EDV leads to the increased SV.
Unexpectedly, a missense mutation found in a protein-coding gene is no longer causing problems for the cell due to the presence of this mutant tRNA. Before the missense mutation in the protein-coding gene, what was the unique encoded amino acid.
What are the targets and mechanisms of action of antiviral drugs to influenza and why are there so few antivirals to influenza available?
The Heliconius butterflies are a classic example of Müllerian mimicry. Which of the following defines a pair of species exhibiting Müllerian mimicry and which of the following defines an obligate mutualistic relationship
explain How will the net charge of a typical protein change.The table below indicates approximate values for these at 25C. For reference, the delta H(ionization) for Tris is 47kJ/mole.
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