Click on Technique in the Building a Reference Map section in case two http://media.org/biointeractive/click/elephants/dna/one-crime-scene.html a.

1. Click on Technique in the Building a Reference Map section in case two http://media.hhmi.org/biointeractive/click/elephants/dna/one-crime-scene.html
a. How does this gel differ from the gels you studied in Case One?