KEY+Genetics_Sample_Exam

KEY+Genetics_Sample_Exam - BIOLOGY 2A / GERHART/ GENETICS...

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B IOLOGY 2A / G ERHART / G ENETICS SAMPLE EXAM I NSTRUCTIONS Y OU LL BENEFIT MOST IF YOU TAKE THIS PRACTICE EXAM ON YOUR OWN , WITH NO NOTES AND WITHOUT LOOKING AT THE KEY . It will also help you if you WRITE DOWN your reasoning for each answer. Why are the answers you didn’t choose “wrong”? After you’ve taken the exam, score each question in terms of the level of understanding (from Bloom’s Taxonomy) required to answer it. This will help you focus on what you need to review as well as what types of review might be most helpful in preparing for the actual exam. Key to Bloom’s scoring of exam questions 1 = information (recall, list, recognize) 2 = comprehension (describe, explain, define, provide an example) 3 = application (predict, use) 4 = analysis (infer, interpret, compare / contrast) The questions in this practice exam represent the types of questions that you might see on the actual exam (they are in fact old Bis2A exam questions collected from several instructors). They are typical of the level of thinking that will be required of you. The exact topics and examples will, of course, be different …so. .. PLEASE DO NOT assume that studying this practice test will be sufficient preparation for the exam. The actual exam will be about half this long – it will have approximately 25-30 multiple choice questions, and about 1 page of multi-format questions.
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Choose the ONE best answer to each question, unless specifically told to choose two answers. 1. Choose the sequence of three bases (listed in order of insertion) that will first be incorporated into the leading strand of DNA when the given sequence is replicated from left to right as shown in the figure. (Level 3) A. G, C, C B. C, C, G C. G, G, C D. G, C, T E. C, G, G 2. The classic definition of gene is (Level 2) A. any base sequence B. the instructions for a particular RNA or polypeptide C. a particular location on a chromosome D. any series of sense codons E. Both C and D 3. What is an acceptable definition of (biological) evolution? (Choose 2 answers) (Level 2) A. A change in gene frequency B. Progressive change C. Improved ability to survive and reproduce D. A change in the observable traits within a population over time E. A change in the observable traits of an individual over time 4. According to Darwin’s Theory, what is the cause of evolution? (Level 2) A. Mutations B. Differences in individual fitness C. Random deaths D. Genetic drift E. Differences in number of offspring produced 5. What aspect of biological information processing DOES NOT involve adding nucleotides at the 3’ end of a growing polynucleotide chain? (Level 2) A. Chromosome replication B. transcription C. translation D. DNA excision repair 3’ 5’ 3’ 5’
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E. “Two-looks” editing during replication 6. Below is the sequence of a region of a DNA molecule (note indicated strand polarity). There is a gap in one strand because a repair system recognized a damaged base and
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KEY+Genetics_Sample_Exam - BIOLOGY 2A / GERHART/ GENETICS...

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