Extracting DNA from Strawberries
Learning Objective
I can extract DNA from a strawberry using a simple procedure and explain the role of each step.
Lesson Flow
Watch Video
How to extract DNA from strawberries
National Human Genome Research Institute
Guided Notes
Key concepts students will learn:
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The purpose of the lysis solution is to break open the strawberry's cells to get to the DNA.
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The lysis solution contains detergent, salt, and water to break open the cells.
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Rubbing alcohol is added to the filtered strawberry mixture to cause the DNA to precipitate, or come out of solution, allowing it to be seen and collected.
Practice
8 questions • Short answer
Exit Ticket
“Describe the role of each of the following components in the strawberry DNA extraction procedure: 1) smashing the strawberries, 2) lysis solution (detergent and salt), and 3) alcohol.”
Teacher Guide
Get the complete package:
- Answer keys for all questions
- Differentiation strategies
- Extension activities
- Printable student handouts
