Biology MCQs

31. What disease is caused by Corynebacterium?
[A] Whooping cough
[B] Tuberculosis
[C] Diphtheria
[D] Gonorrhoea

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32. Restriction enzymes were discovered by?
[A] Smith and Nathans
[B] Alexander Fleming
[C] Berg
[D] None of these

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33. Which organism’s plasmid was first used to construct recombinant DNA?
[A] Cyanobacteria
[B] Bacillus subtilis
[C] Saccharomyces cerevisiae
[D] Salmonella typhimurium

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34. Heart attack occurs due to
____:
[A] Impairment of hearts working due to unknown reasons
[B] Bacterial attack on the heart
[C] Lack of supply of blood to the heart itself
[D] Stopping of heart beat

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35. Membrane lipids of chillsensitive plants contain ____:
[A] Low proportion of saturated fatty acids
[B] Equal proportion of saturated and unsaturated fatty acids
[C] Low proportion of unsaturated fatty acids
[D] High proportion of unsaturated fatty acids

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36. The part of brain which controls emotional reactions in our body is ____:
[A] Hypothalamus
[B] Meninges
[C] Cerebrum
[D] Thalamus

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37. The main protein found in milk is ____:
[A] Globulin
[B] Globin
[C] Casein
[D] Albumin

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38. Which of the following is the smallest bird?
[A] Parrot
[B] Pigeon
[C] Hummingbird
[D] House sparrow

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39. What are the folds found in the mucous lining of the empty stomach?
[A] Typhlosole
[B] Areolae
[C] Rugae
[D] Villi

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40. What is the other name for Vitamin B2?

[A] Dextrose
[B] Riboflavin
[C] Thiamine
[D] Haemoglobin

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