Extracting DNA from Strawberries
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Objective
I can extract DNA from a strawberry using a simple procedure and explain the role of each step.
Part 1 of 4
Warm-up video
National Human Genome Research Institute · 9:46
We don't generate video — this one is by National Human Genome Research Institute on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 concepts
- 1
The purpose of the lysis solution is to break open the strawberry's cells to get to the DNA.
- 2
The lysis solution contains detergent, salt, and water to break open the cells.
- 3
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.
Part 3 of 4
Practice
8 questions
Why are frozen strawberries preferred in this DNA extraction procedure?
What does 'lysis' mean in the context of this experiment?
Part 4 of 4
Exit ticket
Quick comprehension check
“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.”
Sample answer included in the free materials
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