gel electrophoresis

• Gel Electrophoresis - separates molecules based on how big they are
• • Relies on the negative charge of DNA
  • Step used in determining relatedness with different species
  • Used as part of DNA fingerprinting
• Gel - Typically made of agarose
• Agarose is a polysaccharide that is used to make gels for DNA separation in gel electrophoresis
• Wells - DNA is placed into
• • Longer DNA = more weight, and slow
  • SHorter DNA = moves at a faster rate
• DNA Bands - fragments of DNA that race towards the gel