Which of the following is the use of microbes as a biological control agent for pests/diseases?

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 Which of the following is the use of microbes as a biological control agent for pests/diseases?

1.Bt-cotton to increase the yield of cotton

2. Ladybird beetle for controlling aphids in mustard

3. Trichoderma sp against plant pathogens

4.Nucleopolyhedrovirus against white rust in Brassica

Posted Date:-2021-02-22 09:13:49

More MCQS Questions and answers

  1. Which of the following is the use of microbes as a biological control agent for pests/diseases?
  2. Accumulation of __________ causes muscle fatigue.
  3.  A biocontrol agent against plant diseases
  4.  A characteristic feature; which is present only in the phylum Coelenterata is
  5.  Chief cells are present in
  6.  Cnidarians; which exhibit only polyp stage
  7.  Cochineal insects are used for
  8.  In 1981; the first bioherbicide developed was based on
  9.  Phylum Annelida is not characterized by
  10.  Pyrethrin is extracted from
  11.  Rotenone is a
  12.  Rotenone is used as 
  13.  Sliding theory states that
  14.  Superior rectal vein drains into
  15.  The alveolar epithelium of lungs is
  16.  The blood is transported to the liver by hepatic portal vein from which part of the body?
  17.  The cells which secrete tooth enamel are known as
  18.  The linings that separate air contained in lungs from venous blood
  19.  The phenomenon of using a predator to control pests is
  20.  The process of using a natural predator to control a pathogen is called
  21.  This is a third generation pesticide.
  22.  This is an example of bilaterally symmetrical and triploblastic animal
  23.  Tube feet are found in
  24.  When actin filaments are dragged towards M-line; it is known as
  25.  Which of the following blood vessels carries glucose from the digestive tract to the liver?
  26.  Which of the following is a biocontrol agent for nematodal diseases?
  27.  Which of the following is correct for muscle contraction?
  28.  Which of the following is correct for muscle contraction?
  29.  Which of the following is not a biopesticide?
  30.  Which of the following is used as a biocontrol agent against caterpillars of butterflies?
  31.  Which of the following organs only receives oxygenated blood?
  32.  Which of the following plants is an example of a cryptogam with vascular tissues?
  33.  Which part of the digestive system contains lacteals?
  34. Devine” and “Collego” are two agricultural substances used as
  35. Excretion is performed by _______ in flatworms
  36.  Which of the following is not a characteristic of the phylum Arthropoda?
  37. Kupffer’s cells are found in
  38. Most of the carbon dioxide produced in the tissues is transported to the lungs as
  39. RBCs present in the blood of a person residing at higher altitudes
  40. Sarcomere is
  41. The blood is transported to the liver by hepatic portal vein from which part of the body?
  42. The gaseous exchange in alveoli is a type of
  43. The group of molluscs; which possess eyes similar to vertebrates
  44. The hepatic portal system carries blood from
  45. The opening of the hepatopancreatic duct into the duodenum is guarded by
  46. The pheromone coated paper strips in the confusion technique are thrown over an area to
  47. The vein having the lowest amount of urea is
  48. The veins from the stomach; intestine; pancreas and spleen drain into
  49. The wild growth of ______ is checked with Cochineal insect
  50. These cells of ‘Crypts of Lieberkuhn’ secrete lysozyme
  51. This is a contractile protein of muscles
  52. This is an effective plant insecticide
  53. This weed has been eradicated by biological control
  54. Transgenic crop developed to tolerate herbicides is
  55. Trichoderma harzianum is used for
  56. Which of the following blood vessels contain blood with the largest amount of urea?
  57. Which of the following blood vessels does not contain valves?
  58. Which of the following cells secretes gastric acid in the stomach?
  59. Which of the following contains notochord in the embryonic stage?
  60. Which of the following ions is responsible for unmasking of active binding sites on actin for forming cross-bridge during muscle contraction?
  61. Which of the following is a chronic respiratory disorder caused by smoking?
  62. Which of the following is a functional unit of striated muscles?
  63. Which of the following is correct for the partial pressure of oxygen in alveoli?
  64. Which of the following is present on the surface of the epithelial lining of the intestine and help in the absorption of digested food?
  65. Which of the following membranes encloses lungs?
  66. Which of the following parts of the brain regulates the respiratory process?
  67. Which of the following parts of the digestive system contains Brunner’s glands?
  68. Which of the following shows ATPase activity during muscle contraction?
  69. Which of the following veins does not drain into the hepatic portal vein?
  70. Which part of the digestive system contains symbiotic microorganisms?
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