Biology MCQs

1. Schizophrenia is an example of _________?
[A] Allergy
[B] Mental Illness
[C] Organic Degenerative Diseases
[D] None of the above

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2. Who among the following is best known for his discovery and development of the first safe and effective polio vaccine.?
[A] Jonas Salk
[B] David Bodian
[C] Almroth Wright
[D] Albert Sabin

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3. Which among the following does not fall in the category of morbid fear or Phobia?
[A] Claustrophobia
[B] Photophobia
[C] Algophobia
[D] Anthophobia

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4. What is the average life of Red Blood cells in our body?
[A] 30-40 days
[B] 70-80 days
[C] 100-120 days
[D] 160-180 days

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5. The bacterium ‘Escherichia coli’ is found mainly in:
[A] Human Intestine
[B] Pteridophytes
[C] Root Nodules of leguminous plants
[D] Paddy fields for nitrogen fixation

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6. Which among the following blood vessels has the smallest diameter?
[A] Arterioles
[B] Capillaries
[C] Venules
[D] Lymphatic

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7. Which of the following functions is performed by the kidneys in the human body?
[A] Transportation
[B] Excretion
[C] Respiration
[D] Digestion

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8. Which of the following diseases is hereditary? (UPSC Prelims 1987)
[A] Haemophilia
[B] Tuberculosis
[C] Cancer
[D] Dysentery

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9. Consider the following effects of genetic engineering:

  1. Disease resistance
  2. Growth promotion
  3. Closing
  4. Longevity

Of these effects, those that have be entried out with a certain amount of success include (UPSC Prelims 1990)

[A] 1, 3 and 4
[B] 2, 3 and 4
[C] 1, 2 and 4
[D] 1, 2 and 3

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10. Which among the following is not a part of Vitamin B complex?
[A] Vitamin B2
[B] Vitamin B4
[C] Vitamin B6
[D] Vitamin B12

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