EXAMPLES_OF_EXAM_QUESTIONS

EXAMPLES_OF_EXAM_QUESTIONS - a) O 2 , progesterone, ethanol...

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EXAMPLES OF EXAM QUESTIONS (c orrect answers in italics) Alternative splicing: a) Makes it possible to trim 3’ UTR and 5’ UTR DNA regions b) Makes it possible to derive 3 different rRNAs out of a single pre-RNA molecule c) Makes it possible for a single gene to encode more than one protein d) Enables processing of the encoded protein after translation e) Refers to the trimming of N-linked carbohydrates in the Golgi apparatus Which of the following molecules must be present in the three major RNA polymerase complexes for these enzymes to be functional in the initiation of transcription? a) NF-AT b) NF- κ B c) TFIIH d) TATA-binding protein e) Reverse transcriptase Amino acylation of tRNA molecules is: a) An energy neutral reaction b) An energy-dependent reaction in which the energy is provided by GTP c) An energy-dependent reaction in which the energy is provided by ATP d) Catalyzed by aminoacyl translocases e) Catalyzed by ribozymes Which of the following foils lists only molecules that can passively diffuse through a cell membrane?
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Unformatted text preview: a) O 2 , progesterone, ethanol b) Ca ++ , Na + , glucose c) Estradiol, CO 2 , amino acids d) Glucose, amino acids, H 2 O e) Amino acids, nucleotides, K + Stimulation of a cell with a certain signaling molecule was found to increase intracellular PKA activity. Based on this information it can be inferred that the receptor was: a) A GPCR of the Gs subfamily b) A member of the cytokine receptor family c) Unable to oligomerize d) Unable to engage in lateral mobility e) Linked to Smads A cytosolic protein that normally would be transported to the matrix of mitochondria is found in a cell to have an alteration that prevents such translocation. Select the foil that describes the most likely alteration of the protein. a) A mutation that prevents it from binding BiP b) Mutations that alter its TM domain c) A truncated C-terminal domain d) A truncated N-terminal domain e) An mutation that prevents its processing in the ER or Golgi apparatus...
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This note was uploaded on 03/19/2008 for the course MMG 409 taught by Professor Arvidson during the Spring '08 term at Michigan State University.

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