Pepsinogen catalyzes the hydrolysis of proteins to short polypeptides
____________________ Indicate whether the statement is true or false.
F, Pepsin
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Your research project involves the characterization of a recently identified transcription factor. As part of your project, you want to determine if this transcription factor binds directly to any of the general transcription factors. Unfortunately, you are having trouble expressing the full-length protein. What approach may help achieve your research goal?
A. You must find a way to express the full-length protein, since transcription factor functions do not lie in separate domains. B. Identify the RNA that mediates the protein-protein binding. C. Express and purify only the DNA-binding domain, and test for binding. D. Express and purify only the activation domain, and test for binding. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about specific transcription factors? Consider Possibilities · What other information is related to the question? Which information is most useful? · Consider the different answer options. Which can you rule out? Choose Answer · Given what you now know, what information and/or problem solving approach 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?
Which of the following is not true about archaeal ribosomes?
A. They may possess ribosome binding sites homologous to bacterial Shine-Dalgarno sequences. B. They are 70S like bacterial ribosomes. C. They have similar antibiotic sensitivities to those of bacteria. D. All of the choices are correct.
Endospores survive a variety of harsh conditions in part because of the presence of
A) mycolic acid. B) lipopolysaccharide. C) hopanoids. D) dipicolinic acid. E) glycoproteins.
Why are fungi used to clean oil spills?
A. Fungi store the hydrocarbons in their large central vacuoles. B. Fungi use the hydrocarbons in oil instead of CO2 during photosynthesis. C. Fungi use the organic molecules in the oil as food. D. The chemicals in oil kill off the fungus's competitors.