Which of the following reflects sequence elements conserved in pre-mRNA splice sites?
A. CTAG at the 3' end of the 5' exon
B. GAAG at the 3' end of the intron
C. AG at the 5' end of the intron
D. G at the 5' end of the 3' exon
D
You might also like to view...
A molecule that closely resembles the shape of a substrate for an enzyme would most likely serve as a
A. noncompetitive inhibitor. B. allosteric inhibitor. C. competitive inhibitor. D. allosteric activator. 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 enzymes and inhibition? What other information is related to the question? Choose Answer Do you have all the information needed to answer the question? 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?
A patient is having blood glucose problems. Plasma glucose levels are very low, a condition called
hypoglycemia. The problem is not associated with insulin, but with the secretion of glucocorticoids. How would you evaluate the patient to determine where in the feedback system the problem is located?
What will be an ideal response?There was a mass extinction of plants and animals at the end of the Permian period. Which of the following would be a reasonable prediction for the fungal fossil record?
A. There should be a massive increase in saprophytic fossils during the extinction, and then a massive decline shortly after the extinction was complete. B. There should be a slow increase in all fungal fossils during the time that plant and animal species declined, with their numbers staying relatively high afterward since there was little competition from other species. C. There should be a massive decrease in all fungal fossilsat the same time that plant and animal species started to decline, and the number of these fossils should remain low throughout the extinction period D. There should be a massive increase in mycorrhizal fossils during the extinction and afterward.
Tertiary structure can be determined using:
A) both X-ray crystallography and nuclear magnetic resonance spectroscopy B) X-ray crystallography C) thin layer chromatography D) nuclear magnetic resonance spectroscopy