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AS Q04 G hour - a initiate thermo-nuclear war b properly...

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CH357 Introduction to Microbiology Cadet ________________________ Quiz 4 30 points G hour Academic term 2008-1 (6) 1. Where and when do the three initiation factors bind to initiate translation? The factors bind to the small subunit to start transcription. (6) 2. In one sentence describe what is meant by horizontal gene transfer. Genes can be transferred between organisms by means other than reproduction. (4) 3. Which of the following are required for elongation in protein synthesis? a. elongation factors b. GTP c. an empty A site d. all of the above (4) 4. The purpose of the Shine-Dalgarno sequence is to
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Unformatted text preview: a. initiate thermo-nuclear war. b. properly align the tRNA to the mRNA. c. properly align the mRNA to the ribosome. d. properly align the RNA polymerase to the DNA. (9) 5. Correct the following sentence. During RNA synthesis, a separate RNA helicase opens the DNA strand which allows primase to start adding DNA nucleotides to an existing nucleotide strand. During RNA synthesis, RNA polymerase opens the DNA strand and starts a strand of RNA de novo using RNA nucleotides. Extra credit (3 points) What is the dilution factor when 0.1 mL is added to 999.9 mL? 10,000...
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