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Assignment
Be sure to back up each statement of fact with cited sources. Your response to each question should be at least 100 words.
1. Haemophilus influenzae requires hemin (X factor) to synthesize cytochromes and NAD (V factor) from other cells. For what does it use these two growth factors? What disease(s) does H. influenzae cause?
2. The bacterial enzyme streptokinase is used to digest fibrin (blood clots) in patients with atherosclerosis. Why doesn't injection of streptokinase cause a streptococcal infection? How do we know the streptokinase will digest fibrin only and not other tissues?
3. Based on biochemical tests and oxygen usage, how would you identify and classify, respectively, the following microbes:
a. Staphylococcus aureusb. Pseudomonas aeruginosac. Bacillus subtilisd. Escherichia coli.
Discuss how would a disease or disorder that interferes with acetylcholine receptors at neuromuscular junction affect muscle strength?
A typical global concentration of hydroxyl (OH) radicals is about 10^6 molecules cm^-3. What is the mixing ratio corresponding to this concentration at sea level and 298K?
In humans, blood types A and B are codominant with type O being recessive. List the blood types of the offspring of a father with blood type AB and a mother with type O.
For several years the benefits of routine use of female hormone supplements by postmenopausal women have been debated.
1. After almost seven years of President Obama's administration, how has the U.S. economy's "variety" changed?2. Has President Obama's promise to "transform America" included a change in the "variety of capitalism" in the U.S.?
Chytridiomycosis is thought to be associated with increases in environmental temperature associated with global warming. Design an experiment that would help to prove or disprove this theory. Outline the question, hypothesis, prediction, controlled e..
thyroid hormone increases the activity of the sodium-potassium pump. if a person produced excess amounts of thyroid
assume the population is in hardy weinberg equilibrium.
What evidence do we have from population/epidemiology studies, manipulation of animal models, cells in culture, and tumor genomes to support the multistep progression?
Which distributed database process is best under these circumstances. How is the replication of the viral genome of retroviruses unique among the viruses? Why was it before believed that only DNA viruses could cause cancer.
Charles Darwin did not create his ideas in a vacuum. Darwin was motivated and informed by ideas and information from biology and geology. Describe three ideas or observations from biology and/or geology that were important to shaping Darwin’s ideas. ..
Explain the experiments, their expected results, and your conclusions. You may suppose that you have an unlimited budget and an Institutional Review Board with very strict guidelines for research in humans.
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