Exam 1A - BIO

Exam 1A - BIO - Name: _ 2/5/07 1 Introductory Biology 101...

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Name: _____________________________ 2/5/07 1 Introductory Biology 101 Exam Code=1 February 5, 2007 Name: TA: Signature:____________________________________ 1) Print your name and your TA’s name on this page. You may use the back side of the exam pages: be sure to indicate if your answer is continued. If you do not want something graded, be sure to clearly indicate by crossing it out. 2). This is a closed book exam. Your signature at the front of the exam affirms that you will not share information during or following the exam with anyone in keeping with the code of Academic Integrity of Temple University. 4) The instructors will discuss the exam questions. Before you begin, look over the entire exam. Think about how to use your time so that you get credit for everything you know with certainty then spend any remaining time on things you are not sure of. Be sure to put your name and SS# on the scantron sheet and your name on each sheet.
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Name: _____________________________ 2/5/07 2 Points (20) Evolution. Read and think carefully about these data before you respond. You need not write sentences and you may write on the graphs directly but be clear with your notations. Use the back of other pages and indicate this to the grader by arrows or a note. Beak Depth in Medium Galapagos Ground Finches: Histogram (a) shows the distributions of beak depth in medium ground finches in 1976 at the start of the study by the Grants. (b) Histogram shows the distribution in beak depth in the same finch population after the drought in 1977. Heritability of Beak Depth in Geospiza fortis for Years 1978 (Solid Line and circles) and 1976 ((Dotted Line open circles). Graph shows the relationship between the bill depth of parents and their offspring with the “midparent” value representing the average of the maternal and paternal measurements. This measure is important because males of G. fortis are larger than females. How do the finch data demonstrate the following Darwinian postulates: (1) that populations have variation in certain traits; (2) that some variation among individuals in a population is heritable; (3) that there is an excess of offspring, but only the most fit individuals will live to reproduce. Use these data to describe evolution in action, with emphasis on points 1-3.
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Name: _____________________________ 2/5/07 3 Points (20) Show all calculations for partial credit. Cystic fibrosis (CF) is a genetically inherited, autosomal recessive disease that usually results in death before age 40. In some hospitals, newborns are routinely screened for the most common mutation. In the Western world, 1 in 23 healthy people carry the defective gene. The disease frequency is 4/10,000. Determine the following. 1.
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Exam 1A - BIO - Name: _ 2/5/07 1 Introductory Biology 101...

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