Biology MCQs

11. Which organelle is associated with formation of basal granules & flagella?
[A] Centrosome
[B] Golgi apparatus
[C] Mitochondria
[D] Lysosome

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12. Great Zebra, Lesser Zebra and Spotted Zebra are species of:
[A] Butterfly
[B] Fish
[C] Monkey
[D] Dog

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13. Photosynthesis generally occurs in which portions of the plant? (UPSC Prelims 1987)
[A] Leaf and other chloroplast bearing parts
[B] Steam and leaf
[C] Roots and chloroplast bearing parts
[D] Bark and leaf

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14. Which of the following correctly define Amniocentesis? (UPSC Prelims 1988)
[A] Determination of foetal sex
[B] Separation of amino acids
[C] Determination of the sequence of amino acids in a protein
[D] Inducing abortion

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15. Which of the following is the name given to the population of cells derived from a single parent cell? (UPSC Prelims 1989)
[A] Haploid
[B] Diploid
[C] Symmetrical cell
[D] Clone

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16. Which one of the following statements is correct? (UPSC Prelims 2002)
[A] Prions are the smallest free-living cells
[B] The cell wall of Mycoplasmas is made up of amino sugars
[C] Viroids consist of a single-stranded RNA molecule
[D] Rickettsias lack cell wall

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17. Which among the following is NOT a major function of the plant hormone Abscisic Acid?
[A] Abscission of Leaves
[B] Inhibition of growth and maintenance of the dormancy of buds
[C] Inhibition of germination in dormant seeds
[D] All of them are major functions of Abscisic Acid
All of above are major functions of Abscisic acid

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18. The branch of science that deals with the study of the mental faculties of the brain including emotions is known as__?
[A] Phenology
[B] Phycology
[C] Phrenology
[D] Proctology

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19. What are autotrophic thallophytes called?
[A] Fungi
[B] Algae
[C] Bacteria
[D] Virus

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20. Pyrenoids are the center of the formation of__?
[A] Enzymes
[B] Proteins
[C] Fats
[D] Starch

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