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Entrez module of the MLA course on Introduction to Molecular Biology Information Resources
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Basic Search

  • Just enter search terms without specifying search fields, other limits, or Boolean operators
  • Use the Details button to see exactly how Entrez parsed and handled your query

I'd like to retrieve human nucleotide sequences associated with colon cancer.



  • search Entrez CoreNucleotide for human colon cancer
  • View document summary page (title list summarizing search results)
  • How many hits?
  • Any to non-human records? Where does word "human" appear in them?
  • View search Details to see how the system parsed and processed your query


    (complete exercise)
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Revised 10/31/2007