Multiple Choice Questions

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Which one of the following is the American poultry breed

  • Australop

  • Assel

  • Minorica

  • Rhod Island Red


D.

Rhod Island Red

The Rhode Island Red is an American breed of domestic chicken. It was developed in the late nineteenth century in Massachusetts and Rhode Island by cross-breeding birds of Oriental origin such as the Malay with brown Leghorn birds from Italy


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Which one of the following leucocytes transforms into macrophages

  • Eosinophil

  • Basophil

  • Monocyte

  • Lymphocyte


Mention the "Incubation Period" of Plasmodium vivax

  • 10-14 days

  • 20-25 days

  • 30 days

  • 45 days


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

  • Herbarium

  • Aquarium

  • Tissue culture

  • Forest


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


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Chromosomes can be stained with one of the following chemicals

  • acetocarmine 

  • safranine

  • light green

  • eosin


Genetically engineered bacteria are being employed for production of

  • thyroxin

  • human insulin

  • cortisol

  • epinephrine


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

  • Selection

  • Grafting

  • Hybridization

  • Hybridization followed by selection


Ornithophily refers to the pollination by which of the following

  • insects

  • birds

  • snails

  • air


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Scientific name of sunflower is

  • Hibiscus rosa-sinensis

  • Solanum nigrum

  • Oryza sativa

  • Helianthus annuus