Quiz 5 2009 - KEY

Quiz 5 2009 - KEY - BIO325 Genetics Instructor Dr Tracey...

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BIO325 Genetics Instructor: Dr. Tracey Ruhlman TA: Teofil Nakov QUIZ 5 Points are given in parentheses after each question. Total points = 20. 1. This diagram represents regions around a gene encoding mRNA. The letters A-F above the diagram refer to areas of the gene and its transcript located directly below them. AUG is the start codon of the future protein and UGA is the stop codon for the future protein. Some of the questions bellow refer to the same region. (1 point each) a) What region of the DNA contains the TATA box A . b) Where is the poly-Adenine tail added to the transcript F . c) Where is the 7methylguanosine cap added to the transcript B . d) What region of the primary transcript is removed by the spliceosome D . 2. The components of the spliceosome attach to specific sites in the intron thereby enabling splicing. Which of the following is true regarding this process. (1 point each) 5' exon 1 intron exon 2 3' GU A AG a) The 3' G of the intron attacks the 5' end of exon 1. FALSE
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Quiz 5 2009 - KEY - BIO325 Genetics Instructor Dr Tracey...

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