Botany MCQ Questions and Answers Quiz

41. Horticulture is the study that includes

  1. Fruits, vegetables and flowers
  2. All food crops
  3. Vegetable gardens and lawns near hotels only
  4. Some bush crops and apples

42. In cold places frost damage can be reduced in horticultural crops using these methods except

  1. Overhead sprinklers at night
  2. Green houses and shade nets
  3. Wind breaks placement
  4. Appropriate fungicide application

43. In cutting method of vegetative propagation, cuttings are mainly taken from

  1. Leaves of parent plant
  2. Roots or stems of parent plant
  3. Shoots of parent plant
  4. Buds of parent plant

44. In hybridization this is not part of the technique used

  1. Transfer pollen
  2. Collect pollen
  3. Emasculate
  4. Use of two plants to bridge the stems together

45. Increasing high skin cancer and high mutation rate are

  1. O3 depletion
  2. Acid rain
  3. CO pollution
  4. CO2 Pollution.

46. Itai-Itai disease is due to the toxicity of

  1. Lead
  2. Cadmium
  3. Strontium
  4. Tin.

47. Layering can be done on plants such as

  1. bulbs
  2. Lime
  3. Sugar cane
  4. Oleander

48. Layering can be done on plants such as

  1. Bulbs
  2. bougainvillea
  3. Sugar cane
  4. Oleander

49. Lichens indicate pollution by

  1. O3
  2. SO2
  3. NO2
  4. CO.

50. Linnaeus is credited with introducing

  1. The concept of inheritance
  2. Law of limiting factor
  3. Theory of heredity
  4. Binomial nomenclature
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