Competitive Exams: Agriculture MCQs (Practice-Test 19 of 56)

    • Assertion (A): During IXth Five Year Plan, mor emphasis was laid on diversification of agriculture.
    • Reason (R): Intensive agricultur in India has resulted in degradation of soil and loss of input efficiency.
    1. Both A and R ar individually true and r is the correct explanation of A

    2. Both A and R ar individually true but r is not the correct explanation of A

    3. A is true but r is false

    4. A is false but r is true

    • Assertion (A): Integrated farming system is an extremely profitable and sustainable enterprise.
    • Reason (R): In this ther is increased productivity, mor in come generation, accompanied by less employment and costly availability of animal protein with higher expenditure.
    1. Both A and R ar individually true and r is the correct explanation of A

    2. Both A and R ar individually true but r is not the correct explanation of A

    3. A is true but r is false

    4. A is false but r is true

    • Assertion (A): Ammonium sulphate fertilizer and calcium carbonate (liming material) should not be mixed together and kept for long.
    • Reason (R): Ammonium sulphate leaves behind residual acidity in the soil and the acid gets neutralized by calcium carbonate.
    1. Both A and R ar individually true and r is the correct explanation of A

    2. Both A and R ar individually true but r is not the correct explanation of A

    3. A is true but r is false

    4. A is false but r is true

    • Assertion (A): Maize is a cross pollinated crop.
    • Reason (R): Inprotogynous species pistils matur prior to the stamens.
    1. Both A and R ar individually true and r is the correct explanation of A

    2. Both A and R ar individually true but r is not the correct explanation of A

    3. A is true but r is false

    4. A is false but r is true

    • Assertion (A): Germinated gram is used as prophylactic against scurvy.
    • Reason (R): Germinated gram is a good source of Vitamin C.
    1. Both A and R ar individually true and r is the correct explanation of A

    2. Both A and R ar individually true but r is not the correct explanation of A

    3. A is true but r is false

    4. A is false but r is true

    • Assertion (A): Post harvest losses in quantity and quality take place in horticultural crops between harvest and consumption.
    • Reason (R): Fresh horticultural crops are living tissues which ar subject to continuous change after harvest.
    1. Both A and R ar individually true and r is the correct explanation of A

    2. Both A and R ar individually true but r is not the correct explanation of A

    3. A is true but r is false

    4. A is false but r is true

    • Assertion (A): In India, the contribution of agricultur to GDP is 50%.
    • Reason (R): India has emerged as the largest producer of coconut, areca nut, cashew nut, ginger and turmeric.
    1. Both A and R ar individually true and R is the correct explanation of A

    2. Both A and R ar individually true but r is not the correct explanation of A

    3. A is true but r is false

    4. A is false but r is true

  1. Which one of the following is the correct sequence of events involved in gene action?

    1. replication-ranscription-Splicing-Translation

    2. replication-Splicing-Transcription-Translation

    3. replication-Translation-Transcription Splicing

    4. replication-Transcription-Translations-Splicing

  2. Match List I (Scientists) with List II (Discoveries) and select the correct answer:

    List-I List-II
    1. Griffith

    2. McClintock

    3. Meselson and Stahl

    4. Jacob and Monod

    1. Operon model

    2. Transformation model

    3. Semi conservative DNA replication

    4. AC-system

    • A
    • B
    • C
    • D
      • 3
      • 1
      • 2
      • 4
      • 2
      • 4
      • 3
      • 1
      • 3
      • 4
      • 2
      • 1
      • 2
      • 1
      • 3
      • 4
  3. Match List I (Crops) with List II (Grosses) and select the correct answer

    List-I List-II
    1. Brassica junceae

    2. B napus

    3. B carinata

    4. raphanobrassica

    1. B nigr x B Oleracea

    2. raphamus sativus x B oleracea

    3. B nigr x B campestris

    4. B oleracea x B campestris

    • A
    • B
    • C
    • D
      • 1
      • 4
      • 3
      • 2
      • 3
      • 2
      • 1
      • 4
      • 1
      • 2
      • 3
      • 4
      • 3
      • 4
      • 1
      • 2
  4. Which is the most advantageous breeding procedur practiced in Crops where seedless fruits ar mor preferred than the seeded ones?

    1. Mutation breeding

    2. Distant hybridization

    3. Multiple cross breeding

    4. Polyploidy breeding

  5. Consider the following statements: The eight center of origin of crop plants wer identified on the presumption that such areas would represent

    1. Maximum genetic diversity of that crop

    2. Maximum number of wild species & relatives of the crop

    3. Largest area under cultivation of that crop

    Which of the statements given above are correct?

    1. 1 and 2

    2. 1 and 3

    3. 2 and 3

    4. 1, 2 and 3

  6. In-situ conservation is practiced to protect the wild flor from human interference. Which one of the following belongs to insitu mode of conservation?

    1. Valley of flowers

    2. rain forests

    3. Herbarium

    4. Botanical gardens

  7. Match List I (Crops) with List II (Fruit Types) and select the correct answer

    List-I List-II
    1. Wheat

    2. Pea

    3. Mustard

    4. Tomato

    1. Pod

    2. Siliqua

    3. Berry

    4. Caryopsis

    • A
    • B
    • C
    • D
      • 4
      • 1
      • 2
      • 3
      • 2
      • 3
      • 4
      • 1
      • 4
      • 3
      • 2
      • 1
      • 2
      • 1
      • 4
      • 3
  8. The normal curve in a population is maintained by selection of individuals around the population mean. While in natur this is maintained by

    1. Stabilizing selection

    2. Disruptive selection

    3. Directional selection

    4. Frequency dependent selection

  9. Self-llinated crops can be improved by using which of the following procedures?

    1. Pur line selection

    2. Mass selection

    3. Back-oss breeding

    4. recurrent selection

    Select the correct answer using the codes given below:

    1. 1 and 2

    2. 1 and 3

    3. 1, 2 and 3

    4. 2, 3 and 4.

  10. Who first proposed recurrent selection for specific combining ability?

    1. Lindquist

    2. Darwin

    3. Hull

    4. Sprague

  11. Castor hybrids in India ar being commercially produced by utilizing

    1. Cytoplasmic male-erility

    2. Self-compatibility

    3. Hand emasculation and pollination

    4. Pistiliateness of the seed parent

  12. Which one of the following indicates the main features of horizontal resistance?

    1. It is controlled by polygene and it has path type specificity

    2. It is controlled by polygene and it possesses path type non-ecificity

    3. It is controlled by Oligocene's and it has path type specificity

    4. It is controlled by Oligocene's and it possesses path type non-pecificity

  13. Consider the following statements; Heterosis can be best explained by using

    1. Dominance hypothesis

    2. Over-dominance hypothesis

    3. Epistemic gene interaction

    4. Duplicate gene action

    Which of the statements given above are correct?

    1. 1 and 4

    2. 1 and 3

    3. 1, 2 and 3

    4. 2, 3 and 4

  14. Consider the following statements: The inbred lines ar preferred to be parents of hybrid varieties because this leads to maximum

    1. Uniformity in hybrid

    2. Heterosis in the hybrid

    3. Heterogeneity and stability of hybrid

    Which of the statements given above are correct?

    1. 1 and 2

    2. 1 and 3

    3. 2 and 3

    4. 1, 2 and 3

  15. In pear millet, cross-llination occurs because ther is

    1. Protandry

    2. Protogyny

    3. Heterostyly

    4. Self-compatibility

  16. The basic difference between seed and grain is in

    1. Seed processing operations

    2. Uniformity of population

    3. Genetic purity

    4. Seed treatment

  17. Arrange the following fruits in the descending order of their production

    1. Mango

    2. Citrus1.

    3. Banana

    Select the correct answer using the codes given below:

    1. 2--

    2. 1 − 3

    3. 3--

    4. 2--

  18. Match List I (Fruits) with List II (Type/Edible parts) and select the correct answer

    List-I List-II
    1. Anjeer (Ficus)

    2. Banana

    3. Litchi

    4. Sweet Orange

    1. Aril

    2. Hesperidium

    3. Berry

    4. Syconus

    • A
    • B
    • C
    • D
      • 2
      • 1
      • 3
      • 4
      • 2
      • 3
      • 1
      • 4
      • 4
      • 1
      • 3
      • 2
      • 4
      • 3
      • 1
      • 2
  19. Which of the following fruit pigments are fat soluble?

    1. Carotene

    2. Anthocyanin

    3. Lycopene

    Select the correct answer using the codes given below:

    1. 1 and 2

    2. 1 and 3

    3. 1, 2 and 3

    4. 2 and 3

  20. Which one of the following pair is correctly matched?

      • Cauliflower
      • Great lakes
      • Cucumber
      • Improved Japanese
      • Drumstick
      • PKM
      • Lettuce
      • Poinsett
  21. Which one of the following fruit crops is commonly propagated through sexual method?

    1. Litchi

    2. Mango

    3. Papaya

    4. Guava

  22. Which one of the following fruit crops is polyembryonic in nature?

    1. Guava

    2. Karonda

    3. Pomelo

    4. Grape

  23. Which one of the following pair is correctly matched?

      • Litchi
      • Sapindaceae
      • Mango
      • Myrtaceae
      • Guava
      • Anacardiace
      • Papaya
      • Bromeliaceae