Biology MCQs

11. Mitochondrial DNA in an individual comes from which of the following sources?
[A] Male parent
[B] Female parent
[C] Both parents
[D] Neither of the parents

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12. Natural rubber is a plant product which is chemically known by which of the following names?
[A] Mucilage
[B] Gum
[C] Latex
[D] Resin

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13. Haemophilia is a genetic disorder that leads to which of the following conditions?
[A] Decrease in haemoglobin level
[B] rheumatic heart disease
[C] decrease in WBC
[D] non-clotting of blood

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14. Pollination by which among the following is called as ornithophily?
[A] Rodents
[B] Aquatic animals
[C] Ants
[D] Birds

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15. Which among the following is not a bio-fertilizer?
[A] Vermi compost
[B] Urea
[C] Azobacter
[D] Clostridium

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16. Which of the following branch of biology deals with the study of mycoplasma?
[A] Mycoplasmology
[B] Limnology
[C] Ethnobotony
[D] None of these

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17. Robert Hooke is known for which of the following works?
[A] how messages pass between nerve cells in mammals
[B] first use of the word cell
[C] theory of punctuated equilibrium
[D] aquatic ape theory

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18. Which of the following is the function of contractile vacuole?
[A] To carry out pinocytosis
[B] To carry out metabolic process
[C] To pump excess water out of the cell
[D] To carry out phagocytosis

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19. What is another name for Koshland’s theory of enzyme action?
[A] Reduced fit theory
[B] Induced fit theory
[C] Enzyme coenzyme theory

[D] Lock and key theory

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20. What is the fusion of mature individuals that directly act as gametes called?
[A] Isogamy
[B] Anisogamy
[C] Hologamy
[D] Autogamy

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