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Question: Assume you are provided an isolated muscle with its motor nerve intact. The preparation allows you to make electrophysiological measurements from the nerve and muscle as well as mechanical measurements of muscle contraction. You observe that if Drug A is added to the fluid bathing the preparation, the peak tension developed in a muscle twitch produced by stimulating the motor neuron is decreasedList all possible locations at which Drug A might be exerting its effectDrug A is known to alter the transmembrane movement of cations. Which of the sites you listed above would fit this mechanism of action?Suppose high concentrations of Drug A block muscle contraction completely in the presence of motor neuron stimulation. This effect is not prevented by high levels of either Ach or Ach- nicotinic receptor agonists. Now where do you think Drug A is acting? Justify your response.
Cutting DNA with restriction enzyme, hybridizing the DNA with probe, electrophoresis of DNA, blotting the DNA.define the right order in which procedures are carried out.
Assume you ask is to work with the genetic code and examine the structure and characteristics of the amino acids used to make proteins and answer the following question.
Describe why you agree or disagree that “genetically modified organisms” can influence evolution and how does the development of these organisms support evolution?
Digestion of the oligonucleotide, AGUACAA, by pancreatic RNase would yield what products. make a restriction map for this plasmid.
Biotechnology allows us to employ living organisms or their processes for human needs or purposes. Research how biotechnology is used today. Discuss one use of biotechnology, answering the following questions:
After verifying that the protein complex was incorporated into liposomes, you put in NADH and incubate at 37°C. You are dismayed to view no color change in the pH indicator dye.
Fluid accumulates in bellies of children with kwashiorkor. Describe how protein helps regulate fluid balance to explain why this occurs?
explain the advantage and disadvantage of random addition or deletion of nucleotides at VDJ junctions during re-arrangement of immunoglobulin gene segments.
Wrap up the report by explaining the integration of the body systems in maintaining homeostasis. You should include at least the circulatory, digestive and urinary systems in the explanation.
Bacteriophage M13 infects E. coli differently from the way bacteriophage T2 does. The M13 coat is removed in the inner membrane of the bacterial cell, where it is sequestered during phage replication.
Suppose that transgenic organisms can be developed to speed nitrogen fixation. How might use of these organisms affect ecosystem.
Animals obtain energy throughout a series of chemicals reactions in which sugar (C6 H12 O6) and oxygen gas (O2) are reactant. This produces water (H2O) and carbon dioxide (CO2) as waste products. How might you use a radioactive isotope to find out wh..
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