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This laboratory exercise is designed to show learners how DNA can easily be extracted from wheat germ using simple materials. Use this experiment to supplement any unit on genetics and to demonstrate how scientists study DNA. Adult supervision is recommended. This resource guide includes tips and suggestions for instructors as well as other DNA extraction experiments and a chart for learners to answer questions.
- 5 to 10 minutes
- 45 to 60 minutes
- $10 - $20 per group of students
- Ages 11 - 18
- Activity, Experiment/Lab Activity
- English
Quick Guide
Materials List (per group of students)
- 250 ml beaker
- baking soda
- hot plate
- Adolph's natural meat tenderizer
- non-roasted wheat germ
- ice cold 95% ethanol
- thermometer
- 15 ml test tube
- pH meter
- glass stirring rod
- Palmolive
- detergent
- distilled water
- test tube rack or 250 ml beaker
- graduated cylinders (10ml and 100ml)
Subjects
-
Life Sciences
-
Cells
- Cell Structure and Function
-
Diversity of Life
- Plants
-
Heredity and Genetics
- DNA Structure and Function
-
Cells
-
Physical Sciences
- Chemistry
-
The Nature of Science
-
The Scientific Process
- Conducting Investigations
-
The Scientific Process
Informal Categories
- Food and Cooking
Audience
To use this activity, learners need to:
- see
- read
- touch
Learning styles supported:
- Involves hands-on or lab activities
Other
Components that are part of this resource:
This resource is part of:
- Access Excellence Classic Collection
- The Structure of the DNA Molecule
- Introduction to DNA Extractions
Access Rights:
- Free access
By:
- Hays, Lana
Rights:
- All rights reserved, Access Excellence @ the National Health Museum, 2009