Gene therapy can be used to treat
a) cystic fibrosis
b) Zika virus infections.
c) antibiotic-resistant S. aureus infections.
d) avian influenza A infections.
Ans: a) cystic fibrosis
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How did researchers determine the proteins involved in the secretory pathway?
a. interfering with the translation of proteins and examining the cell's ability to transport fluorescently tagged proteins b. adding a detergent to the cells to lyse the membranes and examining transport of fluorescently tagged proteins c. genetically engineering mutations in genes and measuring changes in Golgi complex morphology d. treating cells with inhibitors of the secretory pathway and measuring changes in Golgi complex morphology e. altering the pH of the media to selectively regulate different enzymes and measuring changes in Golgi complex morphology
. A research strain of mice has a mutation that causes voltage-gated sodium channels to take longer to return to the active state after a spike. What is the likely consequence for transduction of sensory stimuli?
A. There will be no effect on sensory perception, because sensory information relies on stimulus-gated ion channels and not voltage-gated ion channels. B. Sensory information will be incorrectly perceived as high intensity stimuli, due to the increased frequency of action potentials. C. The mutation will interfere with the ability of stimuli to create receptor potentials, and thus the neuron will fire with slow, broad action potentials, giving the animal enhanced sensory perception. D. Due to a longer refractory period, the neuron will be unable to conduct high frequency action potentials, and thus will not effectively transmit information about strong stimuli. Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about action potentials? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
If you were going to identify microorganisms within a specimen containing large numbers of organisms (seawater, normal microbiota, etc.), you would have to
A. amplify gene sequences within the sample to identify each of the different organisms. B. use a wide variety of microbiological media to identify all of the different species of microorganisms. C. use different kinds of serological tests. D. use a wide variety of antibodies to react with the antigens.
Which of the following groups of bacteria is named for its resemblance to fungi?
A) Corynebacterium B) Actinomyces C) Clostridium D) Lactobacillus E) Staphylococcus