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Snork Genetics How DNA determines our traits Name:__________________________ Date:___________________Per:_____ Introduction: In this simulation, you will examine the DNA sequence of a fictitious organism - the Snork. Snorks were discovered on the planet Dee Enae in a distant solar system. Snorks only have one chromosome with eight genes on it. Your job is to analyze the genes of its DNA and determine what traits the organism has and then sketch the organism (You can be creative here). For simplicity, the gene sequences are much smaller than -real- gene sequences found in living organisms. Each gene has two versions that result in a different trait being expressed in the snork. Analysis: You will be provided with part of mRNA from a Snork with a unique sequence. Your job is to determine the sequence of amino acids for your specimen. Write the RNA sequence, the amino acid sequence it codes for and the related trait in the spaces provided. Notice: the mRNA sequence AUG = start and UAA = stop Snork DNA and Traits Genes Amino Acid Sequence Description Gene 1 - body covering val - ser - leu val - ser - lys tyr - pro - glu - glu - lys val - pro - thr - glu - lys leu - leu - leu - pro leu - leu - ser - ala ala - val - val val - ala - ala his - ile his - his ser - pro - val val - phe - tyr asp - ile - leu - leu - pro - thr asp - ile - pro - pro - pro- thr val - asp - asp - ala asp - asp - asp - ala phe - ser - gly phe - phe - gly arg - tyr - cys - lys arg - arg - asp - thr Hairless hairy Plump Skinny 3 legged 2 legged round head square head tail no tail blue pigment (hair/skin) red pigment (hair/skin) small slanted eyes large round eyes circular mouth rectangular mouth pointed standing-up ears rounded floppy ears long spaghetti like arms short stumpy arms Gene 2 - body style Gene 3 - legs Gene 4 - head shape Gene 5 - tails Gene 6 - body pigment Gene 7 - eyes Gene 8 - mouth Gene 9 - ears Gene 10 - arms mRNA Amino acid Trait Results: Draw a picture of the snork who’s DNA you have analyzed. Conclusion: 1. How does the DNA hold the code for making proteins? 2. What is transcription and where in the cell does it take place? 3. What is translation and where in the cell does it take place? 4. Why don’t you expect all Snorks to be exactly the same? 5. How does this example of the Snork species and its DNA relate to humans?