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BIO188 Final Part 1 Sample 1 Key S10

BIO188 Final Part 1 Sample 1 Key S10 - BIO188 Final Part 1...

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1 BIO188 Final Part 1 – Version A This exam contains 45 questions on 9 pages. Each question has the same value. Fill in your name, subject, today’s date, “PART 1” and indicate that you have version “A” on your Scantron sheet before you begin. Read each question carefully, think before you answer and mark the letter corresponding to the SINGLE most correct answer on the scantron sheet. Use a No. 2 pencil only. Make dark marks. Erase any changes completely or fill in a new scantron sheet. Put your name on the question sheet and return it at the end of the exam. 1. According to Beadle and Tatum's hypothesis, how many genes are necessary for the pathway drawn above? A. 0 B. 1 C. 2 D. 3 E. It cannot be determined from the pathway. 2. What does the operon model attempt to explain? A. the coordinated control of gene expression in bacteria B. bacterial resistance to antibiotics C. how genes move between homologous regions of DNA D. the mechanism of viral attachment to a host cell E. horizontal transmission of plant viruses 3. The use of computer programs to search for genes, compare genomes and assemble genomes is called: 4. The tryptophan operon is a repressible operon that is
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2 5. A mutation in which of the following parts of a gene is likely to be most damaging to a cell? 6. A particular triplet of bases in the template strand of DNA is 5'-AGT-3'. The corresponding codon for the mRNA transcribed is A. 3'-UCA-5' B. 3'-UGA-5' C. 5'-TCA-3' D. 3'-ACU-5' E. either UCA or TCA, depending on wobble in the first base. 7. Altering patterns of gene expression in prokaryotes would most likely serve the organism's survival in which of the following ways?
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