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Question 1. What interaction do cytotoxic T cells have when they recognize the antigen displayed on the surface of infected cells? How does this destroy the pathogen?
Question 2. How are B cells similar to cytotoxic T cells?
Question 3. How are B cells activated? What do they differentiate into?
Question 4. What is the function of plasma cells?
Question 5. What reaction occurs between the antibodies and the antigens?
Question 6. How are pathogens marked for destruction? How are they destroyed?
Question 7. What are memory B cells? How long do they survive?
Question 8. How does a "secondary immune response" compare to an "initial immune response"? How does this compare to vaccination?
Define imperfect adaptation (1). Describe two population genetic scenarios that may result in populations failing to achieve perfect adaptation (2). Give an example of one of them (1). Describe in what way it leads to imperfect adaptation (1).
Suppose if a prothallus is seperated in distance from other gametophytes, it will eventually produce both archegonia and antheridia.
A restriction endonuclease "cuts" two DNA molecules at the same location. What can you assume is identical about the molecules at that location?
Peter Mitchell and colleagues determined that the total proton motive force across the inner mitochondrial membrane at 37 degree celsius was 230mV, of which 70% was due to the electrical potential. What was the pH gradient across the membrane?
Describe 3 ways that the knowledge of the metabolic processes photosynthesis and cellular respiration can improve your level of physical fitness. You may wish to investigate choices of appropriate diet and exercise.
A group of single cell organisms collected from the ocean was brought into the lab for examination. The lab assistant was concerned that the water had become full of toxic waste products and so added clean water to the culture. All of the orga..
A patient with hepatitis B has reduced liver function. How will reduced function of her liver affect levels of hormones in her blood or urine?
Through writing Henderson hasselback equation describe how pH is equal to pkA when exactly one half of lactic acid is dissociated into H+ and A- ions through titrating with 0.5M equivalents of NAOH.
how to Calculate the initial velocity. An enzyme with a Km of 0.36 mM was assayed using substrate concentrations of 3 x 10E-7 M, 9.5 x 10E-5 M, 1.5 x 10E-4, 1.16x10E-3, 3 x 10E-3 M, 0.01 M, 0.08 M.
Compare changes in carbon cycle to that of the nitrogen cycle on human health. Create a conceptual graphical model for how changing the carbon cycle is likely to impact human health.
Suppose if you can purchase corn grain or sorghum for $320 per ton as fed for energy, which is the better buy and why? The lab results indicate that the corn is 87 percent DM and has 3.16 Mcal.
The sequence below represents the middle portion of a gene (so don't look for primer or start sites). A frameshift mutation between base +10 and +11 adds a guanine between the two "c"s in the minus strand of DNA.What functional change in the prote..
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