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Giant Chromosomes: Fruit Fly DNA and You


Source Institutions

    Science Museum of Minnesota

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Giant Chromosomes: Fruit Fly DNA and You

Many of the genetic sequences found in the fruit fly genome are similar to those found in humans. This activity allows learners to stain DNA from fruit fly salivary glands and examine the DNA in tightly packed chromosomes under a microscope. This procedure is not technically challenging, but a certain level of manual dexterity and patience are required to complete the experiment. [Activity is publicly available through a web crawler capture on Archive.org.]

Quick Guide


Preparation Time:
10 to 30 minutes

Learning Time:
45 to 60 minutes

Estimated Materials Cost:
$5 - $10 per group of students

Age Range:
Ages 14 - adult

Resource Types:
Activity, Experiment/Lab Activity

Language:
English

Materials List (per group of students)


  • larval culture of Drosophila virilis
  • petri dish
  • tweezers
  • 0.7% saline solution
  • dissecting microscope
  • glass slides
  • glass cover slips
  • chromosome stain (2% aceto-orcein)
  • plastic droppers
  • pencil
  • paper towels
  • light microscope
  • prepared chromosome slides
  • dissecting needles

Subjects


  • Life Sciences
    • Diversity of Life
      • Animals
    • Heredity and Genetics
      • DNA Structure and Function
  • The Nature of Science
    • The Scientific Process
      • Conducting Investigations

Informal Categories


  • Animals

Audience


To use this activity, learners need to:

  • see
  • see color
  • touch

Learning styles supported:

  • Involves hands-on or lab activities

Other


Access Rights:

  • Limited free access

By:

Rights:

  • All Rights Reserved, Science Museum of Minnesota, ©2010

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