An experiment was conducted to extract DNA from an onion by a student in grade 12. The images below show how he or she documented the experiment. Examine the images, then respond to the questions that follow.
Grade 12 Life Sciences Practical Task 1 DNA: Questions
Do the investigation according to the “instructions” as shown in the photo. Check to see if your results match those of the learner.
1. What is the experiment’s purpose?
2. Each of the following experiment’s components should be explained in detail:
- soap solution
- pot of warm water
- filtration
- alcohol
3. This student applied beef tenderizer. Provide a justification for this action.
4. What additional materials except onions could be utilized to create DNA? Reason for your response.