Biotechnology and its Applications: Class 12 Biology (CBSE) important questions and practice
Biotechnology and its Applications is chapter 10 of 13 in CBSE Class 12 Biology. Below are the topics the paper draws from, the question types that come up again and again, and a free practice test on this chapter alone.
Topics in this chapter
- Biotechnological applications in agriculture: Bt cotton and cry genes
- Pest-resistant plants: RNA interference against Meloidogyne incognita
- Applications in medicine: genetically engineered insulin (Eli Lilly, A and B chains)
- Gene therapy for ADA deficiency
- Molecular diagnosis: PCR, ELISA, recombinant DNA technology
- Transgenic animals, ethical issues, biopiracy and Indian patents (Basmati, turmeric)
What examiners usually ask
- How is Bt toxin produced by Bacillus thuringiensis and why does it not kill the bacterium itself?
- Explain the procedure of producing human insulin using recombinant DNA technology
- What is gene therapy? Describe its use in treating ADA deficiency
Exam tip
Explain that Bt toxin exists as an inactive protoxin that is activated in the alkaline insect gut, and for insulin mention that chains A and B were produced separately in E. coli and joined by disulphide bonds; these two mechanisms are the most asked.
Biotechnology and its Applications on other boards and exams
Frequently asked questions
What are the important questions from Biotechnology and its Applications for CBSE Class 12?
The question types listed above repeat most often in CBSE Class 12 Biology papers for this chapter. Practise them with the chapter test and then attempt them inside a full previous-year paper under time.
Is Biotechnology and its Applications in the CBSE Class 12 Biology syllabus?
Yes. Biotechnology and its Applications is part of the current CBSE Class 12 Biology syllabus, as listed on this site from the prescribed textbook.
Can I practise Biotechnology and its Applications MCQs in Hindi?
Yes. The chapter test and explanations are available in Hindi and English, with an AI doubt solver for any question.