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1- One recent approach to vaccine development has been production of peptide vaccines. In these vaccines, antigenic peptides are injected instead of whole bacteria or viruses. Peptide vaccines have not been particularly useful against viral pathogens because viral infections require a CD8+ T cell mediated immune response. Why is a peptide vaccine unable to create such a response?
2- In type I insulin dependent diabetes, CD8+ T cells specifically target and destroy insulin producing b cells in the islets of Langerhans in the pancreas. How is MHC class I involved? "diabetes is not caused by a virus or intracellular bacterial infection"
3- The parasite, Toxoplasma gondii, invades cells and replicates inside its own vesicle which does not fuse with any cellular vesicles. Why is this parasite unable to be presented with class II MHC?
Pretend that our class conducted a lab on the population genetics of squirrels in Utah. The class was split into three group and sent to different areas of the state to collect DNA samples.
Suppose if you are eating a ham and cheese sandwhich, What steps take place with regard to digesting the sandwich?
About 13 different species of finches inhabit the Galápagos Islands today, all descendants of a common ancestor from the South American mainland that arrived a few million years ago.
Histone protein H4 from pea plants and cow thymus glands contain 102 amino acids in both cases. A total of one hundred of the amino acids are identical in 2 species.
Read the review entitled "RNA Virus Replication Complexes" by Tao & Ye. Choose one of the following: (+) RNA Viruses, (-) RNA viruses or dsRNA virus and describe the location in the cell of its replication complex and the mechanism by which replicati..
Describe the benefits of delaying sexual activity until individuals are older. Describe benefits of exercise for weight loss and weight maintenance.
List two possible mutations that might cause this phenotype. Be as specific as possible about the location of mutation. What led physician to make this diagnosis, and what might have caused the sudden attack.
Explain how photosynthesis and respiration are linked in order to provide you with energy from the food you eat.how to Explain the role of fermentation.
Briefly, discuss the difference of movement of objects in your visual field that are near compared to those that are far away. Think moon vs. light pole.
Discuss the difference and similarities between mosses fern and gymnosperms to their life cycle? and how did they adapt to a land environment?
Codons with U or C as the second nucleotide, for example, tend to specify hydrophobic amino acids. Can you recommend a possible explanation for this phenomenon in terms of the early evolution of the protein synthesis machinery?
In humans, a dimple in the chin is a single gene, autosomal dominant characteristic. A man with the dimpled chin, whose mother lacked dimpled chin.
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