21. Khaira diseases of rice is due to deficiency of
(A) Zink
(B) Iron
(C) Nitrogen
(D) Sulphur deficiency
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22. Green colour of Bile juice is due to :
(A) Biliverdin
(B) Bilirubin
(C) Sodium glycocholate
(D) Sodium taurocholate
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23. Economic Yield / Biological Yield X 100 is a formula for calculating of:
(A) Seed index
(B) Net yield
(C) Harvest index
(D) Gross yield
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24. The main function of setae in earthworm is :
(A) Excretion
(B) Nutrition
(C) Respiration
(D) Locomotion
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25. Soil structure is improved by application of:
(A) Urea
(B) Super phosphate
(C) Muirate of potash
(D) Zinc sulphate
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26. Late blight of potato is caused by:
(A) Albugo
(B) Fusarium
(C) Phytophtora infestans
(D) Alternaria solani
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27. A living mechanical tissue is :
(A) Sclerenchyma
(B) Collenchyma
(C) Parenchyma
(D) Chlorenchyma
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28. The Dipnoi are commonly known as:
(A) Lung fishes
(B) Ganoid fishes
(C) Ray fishes
(D) None of the above
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29. Scientific name of while fly is :
(A) Alerolobus baradensis
(B) Hototrichia consanguinea
(C) Odontotermes obesus
(D) Pyrilla perposilla
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30. Lock and key model is proposed by:
(A) Emil Fischer
(B) Koshland
(C) J.C. Bose
(D) Boehm
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31. Edible part of mango is :
(A) Receptacle
(B) Epicarp
(C) Mesocarp
(D) Endocarp
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32. The botanical name Solanum tuberosum is of:
(A) Tobacco
(B) Potato
(C) Chilli
(D) Pea
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33. Carbonic anhydrase enzyme is mostly active in :
(A) Red Blood Corpuscles
(B) White Blood Corpuscles
(C) Blood Plasma
(D) Blood Platelets
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34. ‘Guchhi’ is a common name of:
(A) Agaricus
(B) Yeast
(C) Morchella
(D) None of the above
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35. Phenyl Mercuric Acetate :
(A) Reduces respiration
(B) Reduces photosynthesis
(C) Reduces transpiration
(D) Kills the plants
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36. Genes of which microorganism have been used to genetically modified cotton and brinjal ?
(A) Bacillus thuringiensis
(B) Azospirillum species
(C) Saccharomyces species
(D) Agrobacterium species
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37. Which of the following is not an aromatic amino acid ?
(A) Phenylalanine
(B) Tyrosine
(C) Histidine
(D) Tryptophan
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38. Which of the following is not a pulse crop ?
(A) Pea
(B) Gram
(C) Soyabean
(D) Maize
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39. In a C.A.M. plant, the concentration of organic acid :
(A) Increases during the day
(B) Decreases or increases during the day
(C) Increases during night
(D) Decreases during any time
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40. White smoke indicates :
(A) Burning of lubricating oil in cylinder
(B) Richer mixture of fuel
(C) That engine is overloaded
(D) Presence of water in the fuel
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