Multiple Choice Questions

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Ornithophily refers to the pollination by which of the following

  • insects

  • birds

  • snails

  • air


B.

birds

Ornithophily or bird pollination is the pollination of flowering plants by birds. This coevolutionary association is derived from insect pollination (entomophily) and is particularly well developed in some parts of the world, especially in the tropics and on some island chains.


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Which of the following is correct

  • Haemophilic-Y-chromosome

  • Down's syndrome-21' chromosome

  • Sickle cell anaemiaX-chromosome

  • Parkinson's disease-X and Y-chromosome


Genetically engineered bacteria are being employed for production of

  • thyroxin

  • human insulin

  • cortisol

  • epinephrine


Scientific name of sunflower is

  • Hibiscus rosa-sinensis

  • Solanum nigrum

  • Oryza sativa

  • Helianthus annuus


By which of the following methods, new and better varieties of plants can be formed

  • Selection

  • Grafting

  • Hybridization

  • Hybridization followed by selection


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Chromosomes can be stained with one of the following chemicals

  • acetocarmine 

  • safranine

  • light green

  • eosin


Which one of the following is the American poultry breed

  • Australop

  • Assel

  • Minorica

  • Rhod Island Red


Which of the following is an example of man-made ecosystem

  • Herbarium

  • Aquarium

  • Tissue culture

  • Forest


Which one of the following leucocytes transforms into macrophages

  • Eosinophil

  • Basophil

  • Monocyte

  • Lymphocyte


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Mention the "Incubation Period" of Plasmodium vivax

  • 10-14 days

  • 20-25 days

  • 30 days

  • 45 days