Murder

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Murder?

• Anyone know of a recent murder case from the news?

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Dna Fingerprinting

• Restriction enzymes
• DNA scissors
• Cut at specific base pair sequence
• Lets us compare DNA from different sources
• Diff. DNA looks different when cut with same
  restriction enzyme

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DNA charge

• Phosphate groups
• Found between sugars of DNA structure
• Negatively charged
• Gives DNA an overall negative charge (polar)
• Remember like charges repel
• Opposites attract

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Agarose

• Sugar
• Insoluble in water at room temperature
• Soluble at higher temperatures
• Melts and sugars connect to each other making a
  jello like gel

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