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Q1. Activation of T cells requires that antigens be presented from antigen-presenting cells, not simply by exposure to the antigen in solution. What biological rationale may underlie this requirement - consider both from the perspective of how this can aid in the generation of a cytotoxic T cell response, and how it might aid in avoiding undesirable T cell responses.
Q2. What is the biochemical pathway that corresponds to duplicate dominant epistasis in genetics? There is a 15:1 ratio of phenotypes, there are two genes involved: A and B. but what is biochemical pathway that causes this ratio to form?
The loss of water during a hot day causes the blood volume to reduce and the osmolality of bodily fluids to increase. Discuss and explain how antidiuretic hormone can help to maintain homeostasis.
An inbred mouse that expresses Db and Kb is crossed with an inbred mouse that expresses no class I MHC. The F1 offspring are all DbKbKk.
Discuss Darwin's view of how natural selection resulted in both unity and diversity of life on earth. Include some of Darwin's evidence for his claims.
describe the range of CF phenotypes. List the other organs besides lungs that are affected and how does it affects those organs.
The gene for absence of eges (a) in fruit flies is recessive to teh gene for normal eyes (A). An eyeless male is crossed witha female who is purebred for normal eyes.
Draw the tRNA molecules that will be used in the translation of the gene. "stick figures" are acceptable.
q1. suppose you are a geneticist and youre asked to examine the effects of a radiation leak that occurred at a facility
Discuss and explain the relative contributions of developed and developing nations to the global footprint
use chi square analysis to test your model - how could you explain this inheritance at the molecular level.
Normal blood glucose concentration (1000 mg/L) produce body osmolarity of about 3000 mOsm/L. An elderly woman with diabetes has a blood glucose concentration of 1800 mg/L that raises her blood glucose to 4000 mOsm/L. In this diabetic patient, pred..
A man with hemophilia marries a woman whose family has no record of hemophilia. Their first child is a son. The couple is worried that their son may have inherited hemophilia. What are the chances of a hemophilic son.
As a result of a fall, the optic foramen on one side is damaged. What cranial nerve might be damaged. Will this cause complete blindness or partial blindness?
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