BIS%202B%20MII%20F09%20Key

BIS%202B%20MII%20F09%20Key - Biological Sciences 2B Strong...

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Biological Sciences 2B - Strong & Keen Fall 2009 Midterm #2 Please Read the Instructions First. Check your pages--there are 12 pages in this exam (including this page-page 12 is blank). 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 and False questions-10 questions at 1 point each = 10 points total Scantron Questions-20 questions worth 3 pts each: 60 points total Fill-in Questions--4 questions, all with multiple parts, worth 30 points total Bonus Questions-2 questions worth 3 points each, worth 6 points total 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--I tear them off to read them!! 1. Use pen only on the fill-in questions (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. Spelling rules: 1 /2 credit for 2-3 letters wrong or transposed. No points will be given if the misspelling alters the meaning of the word. You have 50 minutes, so budget your time -leave enough time to complete the last fill-ins section, as it is worth 30% of the exam. Page 7-1 8 - , 9 ,
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- Fill in the scantron for each true (A) and false (B) question below. Write true or-fake next to the question on the exam sheet as well. 40 cd wr True or False (2 pts each) - 6 $9 1. The color patterns of budgies and rabbits are both determined by a single gene. rn 1 L b& % 2. The color patterns of budgies and rabbits are represented by a normal distribution indicating that they are continuous characters. F ~0 5, 3. Corn was originally domesticated by the indigenous peoples near the Balsas River in Mexico, so a study of the history of corn would illustrate natural selection 9 9% 4. An AaBbCcDd individual could produce 16 different kinds of gametes. T 5. When one observes a 9:3:3: 1 ratio in the offspring of a particular cross, only one YQ k locus (gene) is being examined. F g<79 6. Plant pollen contains female gametes. F 6?'& 7. Charles Lye11 was a strong proponent of catastrophism. F 8. There are at least 900 alleles of the hemoglobin gene. 8/59 9. If there are 3 alleles (p, q, and r) at a locus, then p2 + q2 +r2 = 1.0 4 F 10. TWO traits controlled by genes that sit very near each other on a chromosome would behave if they violated Mendel's Law of Independent Assortment. T MULTIPLE CHOICE QUESTIONS [3 POINTS EACH; TOTAL: 60 PTS.]. Select the one (1) best answer on your SCANTRONform using a #2 pencil. Circle uour choice-f on the exam sheet well. 11. How many different kinds of gametes could be produced by an individual with the genotype AABbCCDd
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I BIS 2B Fall 2009 12. In a sample of 3000 earthworms, 81% of the animals were qq. If the Q locus has only two alleles and the population is in Hardy-Weinberg equilibrium, what proportion of the population should have the genotype Qq? 13.
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BIS%202B%20MII%20F09%20Key - Biological Sciences 2B Strong...

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