DNA_to_protein_2008-1

DNA_to_protein_2008-1 - Gene Expression from DNA to protein...

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Gene Expression: from DNA to protein How did we learn that genes encode proteins? How is DNA transcribed to RNA? How is mRNA translated to protein?
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What is a gene? Beadle & Tatum Neurospora (pink bread mold) mutants that require arginine for growth:
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Q: What is the order of these compounds in the pathway for arginine biosynthesis? A) precursor → ornithine → citrulline → arginine B) precursor → citrulline → ornithine → arginine C) arginine → ornithine → citrulline → precursor D) precursor → arginine → citrulline → ornithine
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Q: What step are class I mutants unable to perform? A) step 1 B) step 2 C) step 3 precursor → ornithine → citrulline → arginine 1 2 3
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Prokaryotic gene expression
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Eukaryotic gene expression
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Transcription of RNA from DNA Eukaryotic transcription video:
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Q: The sequence below is a portion of the template strand of DNA. What is the RNA sequence transcribed from this template?
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