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1. Which of the following statements about Schistosomaspp is true?
a) The cercaria is considered the growth and metamorphosis phase in the life history of trematodes.
b) Schistosoma mansoniwill develop, pair together and reproduce more rapidly in an immunodeficient host.
c) The schistosomula is vulnerable to attack by the host innate immune system.
d) Helminth infections manipulate the host immune response by activating M1 macrophages which allows the parasite to persist in the host.
e) The eggs of trematodes are not recognized by the host immune system because they are covered with host antigens.
Which of the following events during an action potential contribute to membrane potential repolarization (e.g., the falling phase of the action potential)?
Explain how glycolysis becomes critical to cellular ATP production during severe hypoxia. Your answer should mention the allosteric regulators that accelerate glycolysis.
Not all proteins are so easy to work with. Discuss the difficulties and strategies to overcome these difficulties when using bacteria to express:
1. What are two big impacts of pathogens to human society? 2. Why are infectious diseases still a big concern when the incidence rates have dropped dramatically in the past century?
To decrease the possibility of exposure of the staff and other clients in the hospital, the team sets up a triage tent in the hospital's parking lot.
Make a checklist of items in a clinic room that require disinfecting after every patient. For each item identify the personal protection required
An experimental population is started with a recessive deleterious allele (m) at a high frequency (p). The wild type homozygote (+/+) and heterozygote (+/m) have equal fitnesses.
In prokaryotes, which of the following is true?
The linkage of amino acids by peptide bonds is endergonic and does not occur spontaneously. Which phrase best describes peptide synthesis.
Sketch an FCC unit cell. Indicate the positions and write down the coordinates of all of the tetrahedral and octahedral indices in this structure.
For a phosphatase enzyme in a crude extract isolated from alfalfa sprouts, if you find that assays at 4 and 22 degrees result in the lowest enzyme activity, what should the 490 absorbance be? low or high?
q1. what sort of signalling occurs when insulin is secreted from the pancreas and acts on muscle cells to increase
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