Rhythmic leaf folding is a type of __________, an
event repeated on a 24-hour cycle. Fill in the blank(s) with the appropriate word(s).
Answer: circadian rhythm
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If you were given a bacterial strain with a mutation in the promoter region of the trp operon the most likely effect would be
A. interference with RNA polymerase binding. B. to block the repressor from binding. C. derepression of the trp operon. D. enabling the trp operon to be expressed in the absence of tryptophan. E. lack of expression of just the first gene in the operon. 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 promoters? Consider Possibilities · 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 needed to form recombinant DNA?
A. helicase B. Taq polymerase C. primase D. DNA ligase E. topoisomerase
Which of the following is/are true of the sheath of Leptothrix?
A. May contain ferric and manganic oxides B. Helps protect against microbial predators C. Attaches bacteria to surfaces D. All of the choices are correct.
Which of the following components of a neural signaling pathway are correctly arranged from
beginning to end?
a. integration, transmission, reception, response, transmission b. transmission, response, reception, transmission, integration c. response, reception, transmission, integration, transmission d. reception, transmission, integration, transmission, response e. transmission, integration, transmission, reception, response