Biology MCQs

31. Who proposed rDNA technology?
[A] Herbert W. Boyer
[B] Stanley N
[C] Both 1 and 2
[D] Neither 1 nor 2

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32. Which word is common in the botanical names of trees like Ashoka, Tamarind or Coral?
[A] Terminalia
[B] Indica
[C] Salix
[D] Acacia

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33. In which one of the following is swim bladder absent?
[A] Cartilaginous fish
[B] Silverfish
[C] Cuttlefish
[D] Bony fish

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34. Synapse gap is present between which of the following?
[A] Two Kidneys
[B] Two neurons
[C] Brain and Spinal Cord
[D] None of the above

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35. Which one of the following is not a true fish?
[A] Jellyfish
[B] Starfish
[C] Cuttlefish
[D] All of the above

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36. Commonest mammal is ____:
[A] Elephant
[B] Lion
[C] Human
[D] Panther

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37. A seed can germinate in the absence of ____:
[A] Suitable moisture
[B] Suitable temperature
[C] Adequate light
[D] Supply of oxygen

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38. Which of the following pairs is correctly matched?
[A] Vitamin-B : Rickets
[B] Vitamin-A : Scurvy
[C] Vitamin-E : Reproduction
[D] Vitamin-C: Night-blindness

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39. Which muscles in the skin contract to make the hairs on our skin stand up straight (goose bumps) when we are cold or frightened?

[A] Epidermis
[B] Collagen
[C] Elastin
[D] Arrector pili

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40. ___ is the study of viruses:
[A] Mycology
[B] Protozoology
[C] Virology
[D] Parasitology

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