1. Agricultural Biotechnology

1. Question

4 point(s)

The Green Revolution succeeded in tripling the food supply but was not enough due to:

Increasing human population

Correct Incorrect Correct answer

Use of expensive agrochemicals

Correct Incorrect Correct answer

Lack of land

Correct Incorrect Correct answer

All of the above

Correct Incorrect Correct answer

2. Question

4 point(s)

GMO stands for:

Genetically Modified Organism

Correct Incorrect Correct answer

Gene Modification Organization

Correct Incorrect Correct answer

Genetically Managed Organism

Correct Incorrect Correct answer

Genetic Mutual Organism

Correct Incorrect Correct answer

3. Question

4 point(s)

Which of the following is NOT a benefit of GM crops?

More tolerance to abiotic stresses

Correct Incorrect Correct answer

Reduced reliance on chemical pesticides

Correct Incorrect Correct answer

Reduced efficiency of mineral usage

Correct Incorrect Correct answer

Enhanced nutritional value

Correct Incorrect Correct answer

4. Question

4 point(s)

Golden Rice’ is genetically enriched with:

Vitamin C

Correct Incorrect Correct answer

Vitamin A

Correct Incorrect Correct answer

Iron

Correct Incorrect Correct answer

Protein

Correct Incorrect Correct answer

5. Question

4 point(s)

Bt toxin is produced by a bacterium called:

Bacillus thuringiensis

Correct Incorrect Correct answer

Bacillus subtilis

Correct Incorrect Correct answer

Escherichia coli

Correct Incorrect Correct answer

Agrobacterium tumefaciens

Correct Incorrect Correct answer

6. Question

4 point(s)

Bt toxin gene has been cloned and expressed in plants to provide resistance to:

Insects

Correct Incorrect Correct answer

Viruses

Correct Incorrect Correct answer

Fungi

Correct Incorrect Correct answer

Nematodes

Correct Incorrect Correct answer

7. Question

4 point(s)

The Bt toxin protein exists as:

Active toxin

Correct Incorrect Correct answer

Inactive protoxin

Correct Incorrect Correct answer

Antibody

Correct Incorrect Correct answer

Enzyme

Correct Incorrect Correct answer

8. Question

4 point(s)

The inactive protoxin is converted into an active form due to:

Acidic pH of the insect gut

Correct Incorrect Correct answer

Alkaline pH of the insect gut

Correct Incorrect Correct answer

Body temperature of the insect

Correct Incorrect Correct answer

Enzymes in saliva

Correct Incorrect Correct answer

9. Question

4 point(s)

The activated Bt toxin binds to the surface of:

Midgut epithelial cells

Correct Incorrect Correct answer

Foregut cells

Correct Incorrect Correct answer

Nerve cells

Correct Incorrect Correct answer

Respiratory cells

Correct Incorrect Correct answer

10. Question

4 point(s)

The toxin is coded by a gene named:

cry

Correct Incorrect Correct answer

trp

Correct Incorrect Correct answer

lac

Correct Incorrect Correct answer

his

Correct Incorrect Correct answer

11. Question

4 point(s)

The proteins encoded by the genes cryIAc and cryIIAb control:

Corn borer

Correct Incorrect Correct answer

Cotton bollworm

Correct Incorrect Correct answer

Tobacco budworm

Correct Incorrect Correct answer

Flies

Correct Incorrect Correct answer

12. Question

4 point(s)

The protein encoded by cryIAb controls:

Corn borer

Correct Incorrect Correct answer

Cotton bollworm

Correct Incorrect Correct answer

Mosquitoes

Correct Incorrect Correct answer

Beetles

Correct Incorrect Correct answer

13. Question

4 point(s)

A nematode Meloidegyne incognita infects the roots of:

Rice plants

Correct Incorrect Correct answer

Tobacco plants

Correct Incorrect Correct answer

Cotton plants

Correct Incorrect Correct answer

Maize plants

Correct Incorrect Correct answer

14. Question

4 point(s)

The strategy used to prevent nematode infection in tobacco plants is based on:

RNA interference (RNAi)

Correct Incorrect Correct answer

Antisense RNA only

Correct Incorrect Correct answer

DNA interference

Correct Incorrect Correct answer

Protein inhibition

Correct Incorrect Correct answer

15. Question

4 point(s)

RNAi takes place in all eukaryotic organisms as a method of:

Cellular defense

Correct Incorrect Correct answer

Reproduction

Correct Incorrect Correct answer

Energy production

Correct Incorrect Correct answer

Digestion

Correct Incorrect Correct answer

16. Question

4 point(s)

RNAi involves silencing of a specific mRNA due to a complementary:

ssDNA

Correct Incorrect Correct answer

dsRNA

Correct Incorrect Correct answer

ssRNA

Correct Incorrect Correct answer

Protein

Correct Incorrect Correct answer

17. Question

4 point(s)

The source of complementary RNA in RNAi could be:

Infection by viruses having RNA genomes

Correct Incorrect Correct answer

Mobile genetic elements (Transposons)

Correct Incorrect Correct answer

Both A and B

Correct Incorrect Correct answer

Bacterial DNA

Correct Incorrect Correct answer

18. Question

4 point(s)

The vector used to introduce nematode-specific genes into the host plant was:

Agrobacterium tumefaciens

Correct Incorrect Correct answer

Bacillus thuringiensis

Correct Incorrect Correct answer

pBR322

Correct Incorrect Correct answer

Retrovirus

Correct Incorrect Correct answer

19. Question

4 point(s)

The introduction of DNA was such that it produced both:

Sense and Anti-sense RNA

Correct Incorrect Correct answer

Only Sense RNA

Correct Incorrect Correct answer

Only Anti-sense RNA

Correct Incorrect Correct answer

Only Proteins

Correct Incorrect Correct answer

20. Question

4 point(s)

Golden rice helps in preventing:

Scurvy

Correct Incorrect Correct answer

Night blindness

Correct Incorrect Correct answer

Rickets

Correct Incorrect Correct answer

Beriberi

Correct Incorrect Correct answer

21. Question

4 point(s)

[NEET 2016] The two polypeptides of human insulin are linked together by:

Hydrogen bonds

Correct Incorrect Correct answer

Phosphodiester bonds

Correct Incorrect Correct answer

Disulphide bridges

Correct Incorrect Correct answer

Peptide bonds

Correct Incorrect Correct answer

22. Question

4 point(s)

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

Leaf

Correct Incorrect Correct answer

Stem

Correct Incorrect Correct answer

Root

Correct Incorrect Correct answer

Flower

Correct Incorrect Correct answer

23. Question

4 point(s)

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

Fungal diseases

Correct Incorrect Correct answer

Plant nematodes

Correct Incorrect Correct answer

Insect predators

Correct Incorrect Correct answer

Insect pests

Correct Incorrect Correct answer

24. Question

4 point(s)

Twisted: If you use a cryIAb gene in cotton, it will be ineffective against:

Corn borer

Correct Incorrect Correct answer

Cotton bollworm

Correct Incorrect Correct answer

Both

Correct Incorrect Correct answer

Neither

Correct Incorrect Correct answer

25. Question

4 point(s)

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

Acidic pH of stomach

Correct Incorrect Correct answer

Body temperature

Correct Incorrect Correct answer

Moist surface of midgut

Correct Incorrect Correct answer

Alkaline pH of gut

Correct Incorrect Correct answer

26. Question

4 point(s)

RNA interference involves:

Synthesis of cDNA

Correct Incorrect Correct answer

Synthesis of mRNA from DNA

Correct Incorrect Correct answer

Silencing of specific mRNA due to complementary dsRNA

Correct Incorrect Correct answer

Interference of RNA in DNA synthesis

Correct Incorrect Correct answer

27. Question

4 point(s)

The process of RNA interference has been used in the development of plants resistant to:

Nematodes

Correct Incorrect Correct answer

Fungi

Correct Incorrect Correct answer

Viruses

Correct Incorrect Correct answer

Insects

Correct Incorrect Correct answer

28. Question

4 point(s)

Which of the following is true for Golden Rice?

It is a variety of rice grown along the Yellow River

Correct Incorrect Correct answer

It is long stored rice having yellow colour tint

Correct Incorrect Correct answer

It is a transgenic rice having gene for beta-carotene

Correct Incorrect Correct answer

It is a wild variety of rice with yellow grains

Correct Incorrect Correct answer

29. Question

4 point(s)

[NEET 2018] In RNAi, the genes are silenced using:

ssDNA

Correct Incorrect Correct answer

dsDNA

Correct Incorrect Correct answer

dsRNA

Correct Incorrect Correct answer

ssRNA

Correct Incorrect Correct answer

30. Question

4 point(s)

Bt toxin kills the insect by:

Blocking nerve conduction

Correct Incorrect Correct answer

Creating pores in the midgut epithelial cells

Correct Incorrect Correct answer

Stopping respiration

Correct Incorrect Correct answer

Digesting the body

Correct Incorrect Correct answer

31. Question

4 point(s)

Cry proteins are named so because:

They are crystal proteins

Correct Incorrect Correct answer

They make the insect cry

Correct Incorrect Correct answer

They are cryptic

Correct Incorrect Correct answer

They are cytoplasmic

Correct Incorrect Correct answer

32. Question

4 point(s)

Transposons are also known as:

Jumping genes

Correct Incorrect Correct answer

Silent genes

Correct Incorrect Correct answer

Split genes

Correct Incorrect Correct answer

Structural genes

Correct Incorrect Correct answer

33. Question

4 point(s)

The choice of genes from B. thuringiensis depends upon:

The crop and the targeted pest

Correct Incorrect Correct answer

The soil type

Correct Incorrect Correct answer

The climate

Correct Incorrect Correct answer

The vector used

Correct Incorrect Correct answer

34. Question

4 point(s)

Post-harvest losses are:

Increased by GM crops

Correct Incorrect Correct answer

Reduced by GM crops

Correct Incorrect Correct answer

Unaffected by GM crops

Correct Incorrect Correct answer

None of these

Correct Incorrect Correct answer

35. Question

4 point(s)

Agrochemical-based agriculture includes the use of:

Fertilizers and Pesticides

Correct Incorrect Correct answer

Manure

Correct Incorrect Correct answer

Biofertilizers

Correct Incorrect Correct answer

Biocontrol agents

Correct Incorrect Correct answer

36. Question

4 point(s)

Which of the following insects is NOT killed by Bt toxin?

Lepidopterans (Tobacco budworm)

Correct Incorrect Correct answer

Coleopterans (Beetles)

Correct Incorrect Correct answer

Dipterans (Flies, Mosquitoes)

Correct Incorrect Correct answer

Hymenopterans (Ants/Bees)

Correct Incorrect Correct answer

37. Question

4 point(s)

Twisted: Does the Bt toxin kill the Bacillus bacterium itself?

Yes, eventually

Correct Incorrect Correct answer

No, because it is an endotoxin

Correct Incorrect Correct answer

No, because it exists as inactive protoxin

Correct Incorrect Correct answer

Yes, but only at high temp

Correct Incorrect Correct answer

38. Question

4 point(s)

[NEET 2020] Bt cotton variety that was developed by the introduction of toxin genes of Bacillus thuringiensis (Bt) is resistant to:

Fungal diseases

Correct Incorrect Correct answer

Plant nematodes

Correct Incorrect Correct answer

Insect predators

Correct Incorrect Correct answer

Insect pests

Correct Incorrect Correct answer

39. Question

4 point(s)

A transgenic food crop which may help in solving the problem of night blindness in developing countries is:

Flavr Savr tomatoes

Correct Incorrect Correct answer

Starlink maize

Correct Incorrect Correct answer

Bt Soybean

Correct Incorrect Correct answer

Golden Rice

Correct Incorrect Correct answer

40. Question

4 point(s)

Making crops more tolerant to abiotic stresses (cold, drought, salt, heat) is a goal of:

Conventional breeding

Correct Incorrect Correct answer

Genetic Modification

Correct Incorrect Correct answer

Organic farming

Correct Incorrect Correct answer

Hydroponics

Correct Incorrect Correct answer

41. Question

4 point(s)

Match the gene with the target:
A. cryIAc
B. cryIAb
C. cryIIAb

A-Cotton bollworm, B-Corn borer, C-Cotton bollworm

Correct Incorrect Correct answer

A-Corn borer, B-Cotton bollworm, C-Corn borer

Correct Incorrect Correct answer

A-Cotton bollworm, B-Cotton bollworm, C-Corn borer

Correct Incorrect Correct answer

A-Corn borer, B-Corn borer, C-Cotton bollworm

Correct Incorrect Correct answer

42. Question

4 point(s)

Which method uses ‘Mobile Genetic Elements’?

RNA interference

Correct Incorrect Correct answer

Bt toxin production

Correct Incorrect Correct answer

Insulin production

Correct Incorrect Correct answer

Gene therapy

Correct Incorrect Correct answer

43. Question

4 point(s)

The first transgenic plant was:

Tobacco

Correct Incorrect Correct answer

Cotton

Correct Incorrect Correct answer

Pea

Correct Incorrect Correct answer

Rice

Correct Incorrect Correct answer

44. Question

4 point(s)

Bt toxin binds to specific receptors on:

Midgut epithelium

Correct Incorrect Correct answer

Foregut lining

Correct Incorrect Correct answer

Hindgut lining

Correct Incorrect Correct answer

Trachea

Correct Incorrect Correct answer

45. Question

4 point(s)

Increased efficiency of mineral usage by plants prevents:

Early exhaustion of fertility of soil

Correct Incorrect Correct answer

Pest attack

Correct Incorrect Correct answer

Drought

Correct Incorrect Correct answer

Floods

Correct Incorrect Correct answer

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1. Agricultural Biotechnology

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