User login


Close, Closer, Closest


Source Institutions

    National Health Museum

Add to listGo to activity
Close, Closer, Closest

In this activity, learners perform an experiment that models a chromatography-like process called electrophoresis, a process used to analyze DNA. Learners examine coffee filter strips, each dotted with mock "DNA" (food coloring dyes diluted with water), as they separate into components when placed in water. This process mirrors restriction mapping techniques used to analyze an animal's genetic makeup. This resource also includes two simple ways of demonstrating gene splicing.

Quick Guide


Preparation Time:
10 to 30 minutes

Learning Time:
10 to 30 minutes

Estimated Materials Cost:
1 cent - $1 per student

Age Range:
Ages 8 - 18

Resource Types:
Activity, Experiment/Lab Activity, Lesson/Lesson Plan, Simulation

Language:
English

Materials List (per student)


  • Mock DNA solutions-two or more food coloring dyes diluted with water
  • coffee filters or paper towels
  • scissors
  • straw
  • container for water
  • paper clips

Subjects


  • Life Sciences
    • Cells
      • Chemistry of Life
    • Diversity of Life
      • Animals
    • Heredity and Genetics
      • Patterns of Heredity
      • DNA Structure and Function
  • Physical Sciences
    • Chemistry
      • Chemistry of Life
  • The Nature of Science
    • The Scientific Process
      • Conducting Investigations
      • Gathering Data
      • Formulating Explanations
      • Communicating Results

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


This resource is part of:

Access Rights:

  • Free access

By:

  • Scientific American Frontiers Online

Rights:

  • All Rights Reserved, Access Excellence @ the National Health Museum, ©2009

Share


User Lists


This resource is part of these lists: