What process enables a single gene to encode two or more polypeptides that are different in their amino acid sequence?
A. alternative splicing
B. self-splicing
C. regulatory splicing
D. capping
E. reverse transcription
Answer: A
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You recently identified a novel protein that contains several membrane-spanning domains. You would predict that the amino acids embedded in the membrane would have ____ side groups.
A. nonpolar B. negatively charged C. polar uncharged D. positively charged 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 know about amino acid side groups? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? 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?
In the recognition of foreign microbial pathogens by host cell phagocytes, which of the following are found on the pathogen rather than on or in the phagocyte?
A. Pattern recognition molecules B. Toll-like receptors C. MAMPs D. NOD receptors
Which hormone, made by the kidney, is necessary for red blood cell production by bone marrow?
A. Erythropoietin B. Hemoglobin C. Insulin D. Erythrocytes E. Leucocytes
Upwelling increases ______________ which can result in red tides.
a) viral load in plankton b) nutrient availability c) temperature d) stratification