Humans aren't the only ones with DNA—fruit has it too. Using a extraction solution, pupils pull the DNA out of a piece of fruit. Learners crush up a piece of fruit with the solution and filter out the solids. Scholars then add cold isopropyl alcohol causing the DNA to precipitate to the top.

Concepts

dna, dna extraction, dna molecule, deoxyribonucleic acid, fruit

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Additional Tags

science

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Instructional Ideas

• Create a lab sheet with directions and questions about the activity
• Research how DNA is extracted for various reasons

Classroom Considerations

• Assumes the class has an understanding that cells contain DNA
• Requires making the extraction solution before class

Pros

• Provides background information about DNA
• Contains extension suggestions

Cons

• None