Microsoft+Word+-+BIS2C.Midterm+1+S11+Answer+Key.doc

Microsoft+Word+-+BIS2C.Midterm+1+S11+Answer+Key.doc - Name:...

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Name: Annotated Answer Key ___ Last, First Biological Sciences 2C (Sinha & Keen) Spring 2011 Midterm #1 Please Read the Instructions First . Check your pages--there are 10 pages in this exam (including this page). You are responsible for making sure that you have all the pages. This examination is worth 100 points. Please bubble in the 9 digits of your student ID number on your scantron. Mark Test Form A. True/False questions—10 questions at 2 points each: 20 points total Multiple Choice Questions—20 questions worth 3 pts each: 60 points total 1. Indicate your answers on the scantron sheet using a number 2 or a test scoring pencil. Press heavily, don’t stray out of the margins and completely erase any changed answers. 2. Circle your answers on the page. 3. If you think that a multiple choice question is ambiguous or confusing, use the “explanation sheet” at the end of the examination to explain the problem. Put your name on this sheet—we tear them off to read them! Fill-in Questions--4 questions, some with multiple parts, worth 20 points total 1. Use pen only (no grade corrections for pencil). 2. Write only one answer per question--you can elaborate on an answer, but you will not be given any credit if you write two different answers to the question . 3. Be specific and focused; do not expect the graders to read between the lines. 4. Spelling rules: No points will be given if the misspelling alters the meaning of the word. There are also 2 bonus multiple-choice questions (page 11) worth 6 points tota You have 50 minutes, so budget your time –leave enough time to complete the last fill-in section, as it is worth 20% of the exam. Page 8: ______________ Page 9 _______________
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Midterm 1 BIS 2C Keen and Sinha Spring 2011 2 True / false questions (2 Points each; total = 20 Points) Fill in the answer on the SCANTRON using a #2 pencil. Indicate whether the sentence or statement is true or false: A for true and B for false . 1. Unrooted phylogenetic trees include the order of branching in time. False 2. Universally homologous characters can be useful in building phylogenies. False 3. Homoplasy often results from convergent evolution. True 4. Sister taxa are the same age. True 5. Sister taxa should have approximately the same number of species. False 6. There is only one lineage of photosynthetic bacteria. False 7. The EF-Tu genes in various organisms are orthologous genes. True 8. Paraphyletic taxa contain some, but not all, the descendants of a single recent common ancestor. True 9. Mitochondria contain a diploid number of chromosomes. False 10. It is impossible to determine the phylogenetic relationships of an organism that cannot be cultures or isolated. False % correct 98 73 96 84 98 79 78 97 83 87
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Midterm 1 BIS 2C Keen and Sinha Spring 2011 3 MULTIPLE CHOICE QUESTIONS (3 POINTS EACH; TOTAL: 60 PTS.) Mark the letter of the one (1) correct answer on your SCANTRON form using a #2 pencil. Also, remember to circle your choice on the exam sheet. The data matrix below shows the character states for seven characters in
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This note was uploaded on 10/23/2011 for the course BIS 101 taught by Professor Simonchan during the Spring '08 term at UC Davis.

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Microsoft+Word+-+BIS2C.Midterm+1+S11+Answer+Key.doc - Name:...

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