Biology MCQs

31. Which of the following diseases is caused by protozoa?
[A] Whooping cough
[B] Amoebic dysentery
[C] Measles
[D] Athlete’s foot

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32. Which of the following is green manure?
[A] Rice
[B] Sorghum
[C] Maize
[D] Sesbania

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33. Blue-Green algae are __
[A] Symbiotic Nitrogen-Fixing Cyanobacteria
[B] Free-Living Nitrogen-Fixing Bacteria
[C] Loose Association of Nitrogen-Fixing Bacteria
[D] Symbiotic Nitrogen-Fixing Bacteria

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34. Which of the following hydrocarbons is produced by oil and fat feedstock?
[A] Bio-ethers
[B] Green Diesel
[C] Re-formulated gasoline
[D] All of the above

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35. Who led the Green Revolution in India?
[A] Verghese Kurien
[B] M.S. Swaminathan
[C] M.K. Gandhi
[D] Norman Borlaug

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36. Which chemical is used to obtain a precipitate of pure DNA?
[A] Methanol
[B] Ether
[C] HCl
[D] Ethanol

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37. Root cap is derived from
____:
[A] Dermatogen
[B] Calyptrogen
[C] Protoderm
[D] Histogen

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38. What is the Normal Blood Volume in human adult?
[A] 1 litre
[B] 3 litre
[C] 5 litre
[D] 7 litre

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39. The only bird that flies backward is ____:
[A] Koel (Cuckoo)
[B] Sparrow
[C] Siberian Crane
[D] Hummingbird

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40. The total number of living organisms, both plants and animals, in a given area is called ____:
[A] Buffers
[B] Biomass
[C] Batholith
[D] Barrage

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