Practice Isolation of the Genetic Material (DNA) - 9.3.1 | 9. Biotechnology : Principles and Processes | CBSE Grade-12 Biology
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Practice Questions

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Question 1

Easy

What is the purpose of isolating DNA?

💡 Hint: Think about what DNA holds that is essential in biology.

Question 2

Easy

Name one enzyme used to lyse bacterial cells.

💡 Hint: This enzyme breaks down the cell wall of bacteria.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the first step in isolating DNA from a cell?

  • Removing RNA
  • Cell lysis
  • Precipitating DNA

💡 Hint: Think about the necessary process needed to access the DNA.

Question 2

True or False: Ribonuclease is used to break down proteins during DNA isolation.

  • True
  • False

💡 Hint: Recall which macromolecule each enzyme acts upon.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Design a step-by-step protocol to isolate DNA from a given organism while considering potential contaminants at each stage.

💡 Hint: Consider the type of organism and the required enzymes.

Question 2

Explain how impurities can affect an experiment involving PCR. What protocols would you implement to ensure high purity of the extracted DNA?

💡 Hint: What specific tests could be done post-isolation to evaluate purity?

Challenge and get performance evaluation