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1. What are the mechanisms and the mediators of anaphylactic shock? Discuss the type of hypersensitivity reaction and the molecular mechanisms of anaphylactic shock. What are some possible immediate and prophylactic treatment and how do they work?
2. What are differences between the primary and secondary immune response for antibody production? Why are booster shots given after the primary vaccine? Postulate on the long term effects of multiple vaccinations.
3. Explain how T cell education takes place in the thymus (be sure to include positive ands negative selection) and how self reactive T cells can escape to the periphery. Explain how the immune system then has at least two mechanisms to prevent recognition of self antigens in the periphery (be sure to cover the signal model and T regulatory cells).
q1. archaeologists discover skeletal remains of human like animals in ethiopia. examination of bones suggests that the
which of the following is known as an incidental or accidental parasite and can live and reproduce in homo sapiens? A) Diplidium caninum B) Trichomonas vaginalis C) Enterobius vermicularis D) Ascaris limbricoides E) Schistosoma japonicum.
How does divergence effect Fst values between 2 populations? AND List 3 reasons that the Ne will be smaller than N. In each case, explain HOW this scenario results in a smaller Ne. Detailed answers get the points.
What type of interaction is directly responsible for the formation of secondary structure?
The human vasoactive intestinal polypeptide (or VIP) contains 29 amino acid.
Cross a wildtype female with a yellow bodied male to generate an f1 offspring generation. Which allele is domonant and which is recessive. Justify your responce using your results.
The single channel current for a sodium channel is 6.4 pA, how many ions flow through the channel in 0.5 msec? Faraday constant = 96500 coulombs each mol.
Which of the following were important firstclues for Darwin's formulation of his Theory of Natural Selection? At the time Darwin had formulated and published hisideas, many opposed it, having other ideas about life and life'shistory. Which of the ..
Describe in 1-2 paragraphs Koch's Postulates and briefly summarize his contributions to the field of Microbiology.
A 41 year old homeless man with a history of alcohol abuse was brought to the ER by his friend. The patient had a productive cough which produced a-foul-smelling, purulent sputum. He had a fever and poor dental hygiene. Chest x-ray showed infiltra..
The ability of certain people to taste a chemical called PTC isgoverned by a dominant allele T, and the inability to taste PTC byits recessive t. If 24% of the population is homozygous dominantand 49% is heterozygous, what is the frequency of t?
Which of the following is most accurate regarding blood vessels leading to a fresh wound?
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