Biology MCQs

11. Which of the following are chlorophyll-bearing, simple, thalloid, autotrophic and largely acquatic(both fresh water and marine) organisms?
[A] Gymnosperms
[B] Bryophytes
[C] Pteridophytes
[D] Algae

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12. Which of the following is the best reason behind the fact that bats can fly in the dark? (UPSC Prelims 1979).
[A] Bats have a better vision in the dark
[B] The light startles them
[C] Bats produce high pitched sounds ultrasonic
[D] None of the above

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13. Which of the following facts is true regarding Colour blindness?
[A] More common among women
[B] Very rare in women
[C] Very rare in men
[D] Found to the same extent in both the sexes

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14. Which one of the following statements is not correct? (UPSC Prelims 2002)
[A] The boiling point of an aqueous solution is higher than that of pure water
[B] Addition of solutes to a solution causes an increase in its water potential
[C] The vapour pressure of the water in a solution is lower than that of pure water
[D] When a solution is separated from water by a semi permeable membrane, water movement can be prevented by applying pressure to the solution.

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15. Which of the following branch of biology deals with the study of Cartilage?
[A] Chondrology
[B] Chromatology
[C] Cnidology
[D] Conchology

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16. Hugo de Vries is related to which of the following theory of biology?
[A] aquatic ape theory
[B] modern anatomy
[C] Mutation Theory
[D] theory of evolution

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17. Which phylum does the salamander belong to?
[A] Mollusca
[B] Amphibians
[C] Reptiles
[D] Mammals

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18. Which of the following is the simplest amino acid?
[A] Glycine
[B] Tyrosine
[C] Alanine
[D] Asparagine

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19. Who among the following discovered the ribosome?
[A] George E. Palade
[B] Theodor Boveri
[C] Albert von Kolliker
[D] Robert Brown

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20. Except which one is not useful in the treatment of viruses?
[A] acyclovir
[B] interferon
[C] penicillin
[D] antibodies

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