In the Southern blot technique, which of the following is NOT required?
A) transfer of DNA to nitrocellulose
B) addition of a labeled probe to identify the gene of interest
C) restriction enzyme digestion of DNA
D) electrophoresis to separate fragments
E) addition of heat-stable DNA polymerase to amplify DNA
E
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If the Calvin cycle were to be temporarily restricted, the highest concentration of NADPH would likely be in the
A. thylakoid space. B. thylakoid membrane. C. stroma. D. chloroplast outer membrane. 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 NADPH, where it is produced, and where it is used? What other information is related to the question? Choose Answer Do you have all necessary information to determine what type of reaction is taking place? 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?
What is the end result of activating the MAP kinase pathway?
A. a change in gene expression B. phosphorylation of multiple cytosolic proteins C. synthesis of second messenger molecules D. ion flow
Which type of life cycle occurs with fungi?
a. Haploid-dominant b. Diploid-dominant c. Alternation of generations d. Meiosis
A molecule that closely resembles the shape of a substrate for an enzyme and that decreases the activity of the enzyme would most likely serve as a(n)
A. noncompetitive inhibitor. B. allosteric inhibitor. C. allosteric activator. D. competitive inhibitor.