Arrange these three layers of the wall of a ureter from the innermost layer (on top) to the outermost layer (on the bottom).
a. Fibrous Connective tissue
b. Mucosa
c. Smooth muscle
d. All of the above
Ans: d. All of the above
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The enzyme beta-galactosidase acts on lactose to form galactose. In turn, the presence of galactose leads to expression of the enzymes responsible for the metabolism of galactose. In this case, lactose is serving as a carbon source and as a(n)
A. inducer. B. repressor. C. DNA-binding protein. D. 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 prokaryotic transcriptional regulation? 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?
The event that occurs when allolactose levels increase in E. coli is
A. transcription of genes within the lac operon increases. B. transcription of genes within the lac operon decreases. C. transcription of genes within the lac operon does not change. D. E. coli cells replicate rapidly. E. the tryptophan operon becomes more active.
__________ is a diagnostic tool that reveals missing
or extra chromosomes and some structural changes in an individual’s chromosomes. Fill in the blank(s) with the appropriate word(s).
After consuming an antacid like Rolaids, ________.
A. HCl production would decrease B. the stomach would absorb water C. the pH of the stomach fluid would decrease D. the pH of the stomach fluid would increase