Biotechnology and Its Applications

Which part of the tobacco plant is infected by Meloidogyne incognita?

Which of the following statements is not correct?

The two polypeptides of human insulin are linked together by:

Which kind of therapy was given in 1990 to a four-year-old girl with adenosine deaminase (ADA) deficiency? (NEET 2016 (Phase 2))

Use of bioresources by multinational companies and organisations without authorisation from the concerned country and its people is called (NEET 2018)

Which of the following is commonly used as a vector for introducing a DNA fragment in human lymphocytes? (NEET 2018)

A ‘new’ variety of rice was patented by a foreign company, though such varieties have been present in India for a long time. This is related to (NEET 2018)

In India, the organisation responsible for assessing the safety of introducing genetically modified organisms for public use is (NEET 2018)

What triggers activation of protoxin to active Bt toxin of Bacillus thuringiensis in boll worm? (NEET 2019)

Which of the following is true for Golden rice?

In RNAi, the genes are silenced using: (NEET 2019 (Odisha))

Which of the following features of genetic code does allow bacteria to produce human insulin by recombinant DNA technology? (NEET 2019)

Bt cotton variety that was developed by the introduction toxin gene of Bacillus thuringiensis (bt) is resistant to:

Match the following columns and select the correct option. Column-I (a) Bt cotton (b) Adenosine deaminase deficiency (c) RNAi (d) PCR Column-II (i) Gene therapy (ii) Cellular defence (iii) Detection of HIV infection (iv) Bacillus thuringiensis (NEET 2020)

With regard to insulin choose correct options. (a) C-peptide is not present in mature insulin. (b) The insulin produced by rDNA technology has C-peptide. (c) The pro-insulin has C-peptide. (d) A-peptide and B-peptide of insulin are interconnected by disulphide bridges Choose the correct answer from the options given below. (NEET 2021)

Now a days it is possible to detect the mutated gene causing cancer by allowing radioactive probe to hybridise its complementary DNA in a clone of cells, followed by its detection using autoradiography because : (NEET 2021)

When gene targetting involving gene amplification is attempted in an individual's tissue to treat disease, it is known as: (NEET 2021)

The Adenosine deaminase deficiency results into:

For effective treatment of the disease, early diagnosis and understanding its pathophysiology is very important. Which of the following molecular diagnostic techniques is very useful for early detection? (NEET 2021)

Statements related to human insulin are given below: Which statement(s) is/are correct about genetically engineered Insulin? (a) Pro-hormone insulin contain extra stretch of C-peptide (b) A peptide and B-peptide chains of insulin were produced separately in E. coli, extracted and combined by creating a disulphide bond between them. (c) Insulin used for treating Diabetes was extracted from Cattles and Pigs. (d) Pro-hormone insulin needs to be processed for converting into a mature and functional hormone. (e) Some patients develop allergic reactions to the foreign insulin. Choose the most appropriate answer from the options given below: (NEET 2022)

In gene therapy of Adenosine Deaminase (ADA) deficiency, the patient requires periodic infusion of genetically engineered lymphocytes because: (NEET 2022)

Which one of the following techniques does not serve the purpose of early diagnosis of a disease for its early treatment? (NEET 2023)

Select incorrect statement, regarding chemical structure of insulin. (NEET 2023 (Phase 2))

Match List - I with List - II. List - I (A) Gene therapy (B) RNA interference (C) ELISA (D) Gel Electrophoresis List - II (I) Separation of DNA fragments (II) Diagnostic test for AIDS (III) Cellular defence (IV) Allows correction of a gene defect Choose the correct answer from the options given below : (NEET 2023 (Phase 2))

Given below are two statements: Statement I: Bt toxins are insect group specific and coded by a gene cry 1Ac. Statement II: Bt toxin exists as inactive protoxin in B. thuringiensis. However, after ingestion by the insect the inactive protoxin gets converted into active form due to acidic pH of the insect gut. In the light of the above statements, choose the correct answer from the options given below: (NEET 2024)

Match List I with List II. List I A. α-1 antitrypsin B. Cry 1Ab C. Cry 1Ac D. Enzyme replacement therapy List II I. Cotton bollworm II. ADA deficiency III. Emphysema IV. Corn borer Choose the correct answer from the options given below. (NEET 2024)

Which of the following genetically engineered organisms was used by Eli Lilly to prepare human insulin? (NEET 2025)

The human protein named α-1-antitrypsin, obtained from transgenic animals, is used for the treatment of ______.

The inactive form of Bt toxin is converted to the active form in the insect gut _______.

The toxin proteins isolated from Bacillus thuringiensis, coded by which of the following genes would control cotton bollworms and corn borer, respectively? (NEET 2026)