Biotechnology and Its Applications is a Class 12 Biology chapter that carries about 2.1% of the Biology questions in NEET. Practise it with 47 questions covering 4 topics, each with an explanation.
Sets of 15 questions that adapt to your level, with an explanation for every answer.
Across the 13 previous year papers, Biotechnology and Its Applications had 22 questions, about 1.7 a year. The most in one paper was 4, in NEET 2018.
| Paper | Questions from this chapter |
|---|---|
| NEET 2026 | 2 |
| NEET 2025 | 1 |
| NEET 2024 | 2 |
| NEET 2023 | 0 |
| NEET 2022 | 1 |
| NEET 2021 | 4 |
| NEET 2020 | 3 |
| NEET 2019 | 2 |
| NEET 2018 | 4 |
| NEET 2017 | 0 |
| NEET 2016 | 1 |
| Re-AIPMT 2015 | 1 |
| AIPMT 2014 | 1 |
8 questions from the practice bank, spread across the chapter's topics. The full set is in the app.
Genetically modified organisms (GMOs) are those whose genes have been:
Answer: D. altered by manipulation using recombinant DNA technology
Why: Transgenic plants, animals and microbes are GMOs.
The cry gene that codes for a protein toxic to the cotton bollworm is:
Answer: D. cryIAc
Why: cryIAb controls the corn borer; cryIAc and cryIIAb control the cotton bollworm.
Transgenic animals are used to:
Answer: C. study how genes are regulated and their effects on the normal functions of the body and its development
Why: They also help to study the diseases and test the safety of vaccines.
The first clinical gene therapy was given in 1990 to a four-year-old girl with:
Answer: C. ADA deficiency
Why: The lymphocytes were grown outside the body, then returned to the patient.
The Bt toxin is produced by the bacterium:
Answer: C. Bacillus thuringiensis
Why: It exists as an inactive protoxin.
The nematode Meloidegyne incognita infects the roots of tobacco plants and causes a reduction in yield. This was prevented by:
Answer: B. RNA interference (RNAi), using a double-stranded RNA from the nematode genes
Why: The nematode specific genes were introduced using Agrobacterium vectors.
The transgenic cow Rosie produced human protein-enriched milk containing:
Answer: B. human α-lactalbumin, at 2.4 grams per litre
Why: The milk was nutritionally a more balanced product for the babies than the natural cow milk.
ELISA and PCR are commonly used molecular techniques for:
Answer: B. early diagnosis of diseases like AIDS
Why: ELISA (detecting antigens/antibodies) and PCR (amplifying DNA) are used for early and sensitive diagnosis of diseases such as AIDS.
Biotechnology and Its Applications carries about 2.1% of the Biology questions in NEET. Across the 13 previous year papers on NeetVictory it appeared 22 times, about 1.7 questions a year.
Biotechnology and Its Applications is a Class 12 Biology chapter in the NCERT syllabus.
NeetVictory has 47 practice questions on Biotechnology and Its Applications, each with an explanation, in sets of 15 that adapt to your level. This page shows a free sample.
NeetVictory