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Chromosomes contain all of the coded information needed by organisms to make any protein it needs. However, they are usually visible only during mitosis of the cell cycle. Chromosomes located in the cells of the salivary glands of Drosophila virilis fruit fly larvae are large and much easier to see. The purpose of this activity is to make a slide and examine these large chromosomes using a microscope.


  • DNA
  • Genetics
  • Chromosomes