Bio151 Sp13 Exam 1 answer key

It is possible that another redundant pathway is

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Unformatted text preview: /Skin Diff gene expressed? Signal present - - - - Receptor present Yes - phosphorylated TK1 present Yes - phosphorylated TK2 present No – not phosphorylated TFa present No – not phosphorylated Genes Yes yes - Skin Diff genes are expressed Bio151 Sp13 Name: Exam 1 Prof. Francis You are quite surprised by your results because you wonder how you can be seeing expression of the skin differentiation genes when two of the signaling components are not phosphorylated. Which of the following are possible explanations for this observation? Explain your reasoning. Two points for each question…one point for the correct yes/no answer, one point for a good explanation A. A phosphatase is active that targets TK2, and ubiquitin- mediated proteolysis has depleted unphosphorylate...
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