Biology MCQs

11. Which one of the following sets is correctly matched?
[A] Diphtheria, Pneumonia and Leprosy : Hereditary
[B] AIDS, Syphilis and Gonorrhoea : Bacterial
[C] Colour blindness, Hemophilia and Sickle cell anaemia : Sex linked
[D] Polio, Japanese B encephalitis and plague : Viral

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12. Which of the following defines an Antigen?
[A] destroys harmful bacteria
[B] is used to treat poisoning
[C] lowers body-temperature
[D] stimulates formation of antibody

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13. 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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14. Which statement is true for the capsid?
[A] It consists of capsomeres
[B] This the outermost layer of most viruses
[C] It protects genetic material
[D] All of the above

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15. Microfilaments are made up of which protein?
[A] Tubulin
[B] Actin
[C] Myosin
[D] Chitin

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16. Dicotyledonous branches are found in which of the following?
[A] Fern
[B] Funaria
[C] Liverworts
[D] Marchantia

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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 supports the upper part of the plant and acts as a transport system for nutrients, water, sugar, and starch?
[A] Stems
[B] Roots
[C] Leaves
[D] Flowers

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19. The tiny pores present on the leaves of plants are called__.
[A] Stomata
[B] Cells
[C] Chlorophyll
[D] Grains

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20. What are the symptoms of the black arms in cotton?
[A] dark red to black lesions
[B] dark brown to black lesions
[C] dark green to black lesions
[D] None of these

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