Agriculture Practice Set Papers

1. How many tests in the lab can be performed to get permeability of soil?
A. 5
B. 4
C. 3
D. 2

2. Terracing is an effective method of soil conservation in:
A. Desert areas
B. Hilly areas
C. Plains
D. Riverine areas

3. Synthesis of RNA and proteins take place in ____________
A. M phase
B. S phase
C. G1 Phase
D. G2 phase

4. Polyploidy can be artificially induced by __________
A. Self-pollination
B. Line breeding
C. Inbreeding
D. Colchicine

5. The characteristic indicated by the blackened figures is probably:
A. Dominant
B. Recessive
C. Non-dominant
D. Sex-linked recessive.

6. Transmission of genes that occur outside nucleus is called
A. Extranuclear inheritance
B. Cytoplasmic inheritance
C. Both A and B
D. None of above

7. What is an apoenzyme?
A. It is a protein portion of an enzyme
B. It is a non-protein group
C. It is a complete, biologically active conjugated enzyme
D. It is a prosthetic group

8. What is the function of phosphorylase?
A. Transfer inorganic phosphate
B. Transfer a carboxylate group
C. Use H202 as the electron acceptor
D. Transfer amino group

9. Phases of Calvin cycle involves:
A. Carbon fixation
B. Reduction
C. Regeneration
D. All of Above

10. Process of photosynthesis cannot occur in absence of
A. Oxygen
B. Carbon dioxide
C. Carbon monoxide
D. Nitrogen

11. How long do patents usually last for?
A. 10 years
B. 20 years
C. 30 years
D. 60 years

12. The critical time period for Hyoscyamus is less than:
A. 12
B. 14
C. 10
D. 15

13. ABO blood group system is due to
A. Multifactor inheritance
B. Incomplete dominance
C. Multiple allelism
D. Epistasis

14. When starch and amylase are mixed in the presence of iodine solution, the blue-black colour rapidly disappears. This is due to the formation of which molecule?
A. Glucose
B. Glycogen
C. Sucrose
D. Maltose

15. The allosteric inhibitor of an enzyme:
A. Causes the enzyme to work faster
B. Binds to the active site
C. Participates in feedback regulation
D. Denatures the enzyme

16. Phosphorylase a +2H2O — phosphorylase b + 2Pi
Which of the following is false about this reaction?
A. Phosphorylase a is less active and phosphorylase b is more active
B. Glycogen phosphorylase catalyzes this reaction
C. Phosphorylase b can be transformed back into phosphorylase a by hosphorylase kinase
D. Phosphorylase kinase catalyzes the transfer of phosphoryl groups from ATP to hosphorylase b

17. Which of the following is false?
A. Allosteric modulators may be inhibitory or stimulatory
B. Based on the nature of modulator, allosteric enzymes are of two types
C. Homotropic allosteric enzymes have the substrate and modulator same
D. Heterotropic allosteric enzymes have the substrate and modulator same

18. The price at which the government offers to sell foodgrains lower than the market price is known as?
A. Procurement price
B. Minimum support price
C. Issue price
D. Market price

19. Which one of these is not a valid reason for food security in India?
A. Overpopulation
B. Hoarding and black marketing
C. Food grains stores are overflowing with food grains
D. None of these.

20. What does food security mean?
A. Availability of food
B. Accessibility of food
C. Availability and accessibility of food to all at all times.
D. Availability, accessibility and affordability of food to all at all the times.

Practice Papers for Agriculture Students

21. Exclusion of plant disease by legislation is known as:
A. Disease resistance
B. Plant quarantine
C. Biological control of plant
D. Cultural control

22. Damage and errors in DNA cause ___________
A. Mutation
B. DNA repair
C. Translation
D. Transcription

23. Which of the following is NOT a type of reverse mutation?
A. Back mutation
B. Intergenic suppressor mutation
C. Intragenic suppressor mutation
D. Missense mutation

24. Which of the following chemical mutagen affects only replicating DNA?
A. Acridine dye
B. Alkylating agent
C. Deaminating agent
D. Base analog

25. Light dependent stage cannot be carried out without:
A. Oxygen
B. Carbon dioxide
C. Water
D. All of these

26. Plant can be destarched in
A. 14 hours
B. 24 hours
C. 42 hours
D. 48 hours

27. Light dependent stage cannot be carried out without
A. Oxygen
B. Carbon dioxide
C. Water
D. All of these

28. Which among the following sentence is TRUE about C3 plants?
A. Photosynthetically more efficient
B. More efficient in CO2 fixation than C4 plants
C. PEPCO is present in mesophyll
D. First stable product is phosphoglyceric acid

29. C4 pathway is shown by
A. Sugar cane
B. Sunflower
C. Pea
D. Rice

30. Carbon becomes available to crop plants in the form of
A. Amino acids
B. Carbonates
C. CO2
D. Elemental C

31. A method of breeding most commonly used when the desired variation is required to be induced in a vegetatively propagated crop is:
A. Polyploidy
B. Pedigree method of breeding
C. Mutation breeding
D. Backcross method of breeding

32. A plant breeder is interested to control pollination to:
A. Prevent cross-pollination
B. Control pollination
C. None of these
D. Both of these

33. A restorer gene is present in:
A. Nucleus
B. Cytoplasm
C. Both (a)&(b)
D. None of these

34. In deamination, amino acid is converted into
A. Aldol acid
B. Keto acid
C. Hydrochloric acid
D. Carboxylic acid

35. Transamination is catalyzed by
A. Transferases
B. Aminotransferases
C. Hydrogenases
D. Dehydrogenases

36. Brain gets energy from ketone bodies if availability of glucose is
A. Constant
B. Less
C. High
D. Zero

37. Nature of anabolism reaction is
A. Exergonic
B. Endergonic
C. Spontaneous
D. Non spontaneous

38. An X linked recessive gene would appear to
A. Be expressed in both males and females equally
B. Skip generations
C. Be lethal
D. Gradually degrade

39. Choose the odd one out.
A. Colour blindness
B. Haemophilia
C. Duchenne muscular dystrophy
D. Faulty tooth enamel

40. Yellow Colour in turmeric is cause due to the presence of
A. Boron
B. Curcumin
C. Iron
D. Comoplastid

41. _____________ is not an insecticide
A. Parathion
B. Sodium Chlorate
C. Aldrin
D. Methoxychlor

42. _____________ is not a kharif crop
A. Mustard
B. Jowar
C. Paddy
D. Soyabean

43. Which State is the largest producer of rice?
A. Uttar Pradesh
B. West Bengal
C. Punjab
D. Andhra Pradesh

44. The process of expression of foreign genes in a plant is called _________
A. Gene expression
B. Transgenesis
C. Genetic transformation
D. Cell hybridization

45. Name the marker gene of streptomycin?
A. HPT
B. SPT
C. PAT
D. BXN

46. Name the first transgenic virus resistant plant?
A. Rice
B. Cotton
C. Tobacco
D. Tomato

47. Name the enzyme which has silenced to delay the ripening process?
A. Polygalacturonase
B. Glyphosate
C. ADA
D. P53

48. Name the strategy where two-plasmid system is used for the introduction of the gene?
A. Binary vector system
B. Co-integration vector strategy
C. Agrobacterium
D. Selectable marker strategy

49. With an increase in seed size upon germination, dry mass of seeds
A. Increases
B. Decreases
C. Vanishes
D. Grows proportionally with seed

50. Dormant seeds are usually
A. Succulent
B. Dry
C. Wet
D. soft