Wright BIO 2110 - Rec2_GeneticCode (3 pages)
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Rec2_GeneticCode
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- School:
- Wright State University
- Course:
- Bio 2110 - Principles of Molecular and Classical Genetics
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Unformatted text preview:
BIO 2110 Genetics Recitation 2 Genetic Code Name Group Members Below is a diagram of a eukaryotic gene Exons numbered 1 4 are shown as thick horizontal lines Flanking DNA is shown as thin horizontal lines The position of the start codon in exon 1 is indicated by an arrowhead Below this diagram is a partial sequence of this gene that includes the start codon and that spans intron 1 Exonic sequences are indicated with upper case letters Intronic sequences are indicated with lower case letters 1 2 3 4 AGTGAATGATAAAGguaagtttcttctgatcattagatggactaccgatcagCTAACATTT 1 What are the first five amino acids that are coded for in this gene Use the genetic code chart included on the last page of this recitation Make sure you start at the start codon How would the following mutations impact the coding potential of this gene 2 A two bp insertion before the start codon AGTCTGAATGATAAAGguaagtttcttctgatcattagatggactaccgatcagCTAACATTT 3 A one bp insertion in codon two AGTGAATGAATAAAGguaagtttcttctgatcattagatggactaccgatcagCTAACATTT 4 A two bp insertion in codon two AGTGAATGAAATAAAGguaagtttcttctgatcattagatggactaccgatcagCTAACATTT 5 An A T substitution at position 3 of exon 2 AGTGAATGATTAAGguaagtttcttctgatcattagatggactaccgatcagCTAACATTT 6 An A T substitution at position 1 of exon 2 AGTGAATGTTAAAGguaagtttcttctgatcattagatggactaccgatcagCTAACATTT 7 An 11 bp deletion at the 3 end of intron 1 AGTGAATGATAAAGguaagtttcttctgatcattagatggaCTAACATTT 8 Which of these mutations are most likely to be null mutations i e to eliminate gene function
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Study Guide: Midterm 2
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