| GATHER EVIDENCE |
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| Police
Officer |
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| 1.
Interview witnesses |
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| 2.
Dust for fingerprints |
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| Mass Spectrometrist |
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| 1. Interview biologist who |
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| isolated
the protein |
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| 2. Cleave protein to obtain |
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| peptide mixture |
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| 3. Analyze peptide mixture by |
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| MS to
obtain peptide |
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| molecular masses! |
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