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Two vaccines are described in a. and b. below. For each, predict whether the vaccine would activate a cytotoxic T cell response or just a T helper and B cell response. Explain your answers by describing what you have learned about antigen processing and presentation. Be sure to include key steps and molecules involved in each processing pathway. a. A UV- inactivated ("killed") viral preparation that has retained its antigenic properties, but cannot invade or replicate in host cells. b. An attenuated active ("live") viral preparation that has low virulence but can still invade and replicate in host cells.
A transmembrane protein in outer membrane of the nuclear envelope would least likely be found later in which one of the following cellular locations?
Define spontaneous generation and who found this idea with animals? who discover his idea for microbes? describe his experiments?
Review the feedback mechanisms that maintain homeostasis and what happens when these systems do not function appropriately. Give two specific examples for each.
What phenotypic results would occur in a cross between a member of an mt+ strain resistant in both genes and a member of a strain sensitive to the antibiotic? What results would occur in the reciprocal cross?
Ribosomes found in bacterial cells consist of two subunits, a small subunit and a large subunit. S stands for Svedberg units, which indicated relative sedimentation rate in centrifuge for a particle of a given size and shape.
Both chemical and physiological buffering systems exist in the body. What are the two organ systems involved in physiological buffering.
Explain how sexual reproduction in plants illustrates alternation of generations. Include the processes involved and include at least one type of plant to illustrate your answer.
Explain an invasive species discovered within the United States. Include in your description where it is found, where it originated from, what impact it has on the environment.
In lecture we discussed plants transitioning from water to land, thus pretend you were this plant clearly identify at least theree things you need to survive on land.
In what brain structure would you expect cocaine to have the largest effect on dopamine transmission and why.
Why is energy from fusion reactors, dissimilar that from fission reactors, so attractive from an environmental perspective. Consider the HIV enzyme called protease. The amino acid residues at the active site are highly hydrophobic.
why the sequences are read in different reading frames.
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