Biology MCQs

11. Which of the following clearly define Pyrilla? (UPSC Prelims 1991)
[A] Disease of teeth and gums
[B] An insect pest
[C] A character of ancient Greek mythology
[D] A building heated by solar energy

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12. In eye donation, which one of the following parts of donor’s eye is utilized? (UPSC Prelims 1999)
[A] Iris
[B] Lens
[C] Cornea
[D] Retina

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13. Which of the following branch of biology deals with the study of pollen grains?
[A] Psychology
[B] Palynology
[C] Pathology
[D] Parasitology

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14. Which of the following virus has its envelope from the host cell nucleus?
[A] Paramyxoviruses
[B] Retroviruses
[C] Orthomyxoviruses
[D] Herpesviruses

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15. Intercalary Meristem is found in which of the following?
[A] grass
[B] monocots
[C] pines
[D] All of the above

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16. What is the role of indole acetic acid in plant growth?
[A] cell division and elongation
[B] tissue differentiation
[C] apical dominance
[D] All of the above

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17. The process of formation of seeds without fertilization in flowering plants is known as __.
[A] Budding
[B] Apomixis
[C] Sporulation
[D] Somatic hybridization

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18. Which of the following is a type of apomixis?
[A] diplospory
[B] apospory
[C] adventitious embryony
[D] All of the above

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19. What is the common name of a devilfish?
[A] Loligo
[B] Sepia
[C] Teredo
[D] Octopus

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20. Which of the following is the major Osmoregulation organ in fishes?
[A] Gills
[B] Kidney
[C] Liver
[D] Stomach

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