BIS104WILSON3

BIS104WILSON3 - PHOTOCOPY WARNING NOTICE WARNING CONCERNING...

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PHOTOCOPY WARNING NOTICE: WARNING CONCERNING COPYRIGHT RESTRICTIONS The copyright law of the United States (Title 17, united States governs the making of photocopies or other reproductions of copyrighted material. Under certain conditions specified in the law, libraries and archives are authorized to furnish a photocopy or other reproduction. One of these specific conditions is that the photocopy or reproduction is not to be “used for any purpose other than private study, scholarship, or research.” If a user makes a request for, or later uses, a photocopy or reproduction for purposes in excess of “fair use,” that user maybe liable for copyright infringement. This institution reserves the right to to accept a copying order if, in its judgement, of the order would involve violation of copyright law. 37 section 201.14 No further transmission or distribution of this material is permitted
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BIS 104 FINAL March 21, 1995 There are 17 pages to this exam. Count them to be sure you have a complete copy of the exam. Write your full name at the top of each page containing short answer questions and on your sheet. Upon completion of the exam, carefully remove the pages with short answer questions and hand them in with your sheet. Be sure that your answers to the short answer questions are included on the same page as the short answer question which you are answering. You may keep the multiple choice question pages. The sheet must be filled out with a pencil. Mark only the best answer to each question on your sheet. A key will be posted for the exam; if you wish to compare your answers to those on the key, be sure to circle the answers you chose on the multiple choice question pages. The easy multiple choice questions are worth 2 points each, the thought-provoking multiple choice questions are worth 3 points each and the short answer questions are scored as indicated.
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EASY QUESTIONS 1. The clathrin molecule has how many arms: a. 3 b. 4 5 6 2. GAP proteins do what to Ras: cause it to hydrolyze GTP cause it to release GTP cause it to release GDP cause it to hydrolyze GDP The fact that every cell in C. elegans derives from a predictable and invariant lineage says what about development in this organism: a. b. development is mosaic development is regulative development is rapid it doesn’t say much about development at all 4. N-CAM is structurally most like what other molecule: integrin T-cell receptor alpha chain fibronectin collagen 5. CD4 is found on: a. b. antigen presenting cells helper T cells cytotoxic T cells MHC Class I cells Which of these molecules can act as the second signal in activating lymphocytes: a. b. CD4 CDS B7 All of the above
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3 7. In the embryonic locust, is undertaken by the of a single sensory neuron in each limb. This neuron is called: a pilgrim neuron a scout neuron a pioneer neuron a pathfinder neuron The segmentation genes in Drosonhila include: the pair-rule genes the segment polarity genes the gap genes all of the above Which of these is a maternal effect gene:
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BIS104WILSON3 - PHOTOCOPY WARNING NOTICE WARNING CONCERNING...

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