VIRTUAL BIOLOGY LAB · LAB 34
🧬 DNA Extraction from Fruit
Visualise simple DNA extraction from soft fruit tissue.
CBSE Classes 11–12Interactive practicalDrag & drop challengeStudent notebook
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🔎 Learning objective
Visualise simple DNA extraction from soft fruit tissue.
3Hands-on matches
1Knowledge check
🧬 Interactive laboratory workspace
Explore the biological idea using the model controls. This is a conceptual classroom simulation.
🧬
DNA Extraction from Fruit
Detergent disrupts membranes; filtering removes debris; cold alcohol precipitates DNA.
PRACTICAL WORKBENCH · EXPERIMENT 34
Ready to begin🧪 Molecular biology bench: Extract DNA from fruit tissue
Detergent disrupts membranes; salt helps DNA aggregate; cold ethanol reduces DNA solubility.
APPARATUS & EXPERIMENT CONTROLS
01 · Set up apparatus02 · Adjust variables03 · Run trial04 · Record reading
◉DNA precipitate▤
OBSERVATION & MEASUREMENTS
Detergent amount—
Salt amount—
Cold ethanol—
Visible DNA yield—Awaiting run
Detergent disrupts membranes; salt helps DNA aggregate; cold ethanol reduces DNA solubility.
Scientific interpretation will appear after the trial.
Scientific note: Mash fruit, add extraction solution, filter and gently layer cold ethanol to precipitate DNA.
Model ready. Choose a condition and run the model to see an observation.
🧪 Hands-on drag & drop challenge
PRACTICAL SKILL BUILDERDrag each item from the tray to its correct destination. On a phone or tablet, tap an item and then tap its destination. Complete all three matches to finish.
🧰 MATERIALS & CONCEPTS
🎯 DROP ZONES
Choose an item and place it in the matching zone.
📓 Observation notebook
Record your observation and export it for revision.
Key concept: Detergent disrupts membranes; filtering removes debris; cold alcohol precipitates DNA.
🎯 Quick knowledge check
Cold alcohol is used to:
Select one answer to check your understanding.
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