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Multiple Choice Questions

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

  • Selection

  • Grafting

  • Hybridization

  • Hybridization followed by selection


Root cells of wheat has 2n = 42 chromosomes. Which one of the following is the basic chromosome number of wheat?

  • 42

  • 21

  • 7

  • 14


Which one of the following poultry birds is not an english breed?

  • Sussex

  • Australorp

  • Orpington

  • Minorca


In plant tissue culture, the callus tissues can be regenerated into complete plantlets primarily by altering the concentration of

  • sugars

  • vitamins

  • amino acids

  • hormones


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Percentage composition of fibroin and sericin in silk is

  • 50 : 40

  • 80 : 20

  • 30 : 70

  • 40 : 60


The father of green revolution in India is

  • Calvin

  • Haberlandt

  • Norman Borlaug

  • Swaminathan


Pieces of plant tissue used in culture is called

  • explant

  • domaclone

  • inoculant

  • clone


In honey, the percentage of maltose and other sugar is

  • 9.2

  • 8.81

  • 10.5

  • 11.2


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Which one of the following is a systematic insecticide

  • Malathion

  • Endrin

  • Parathion

  • Furadan


Micropropagation is a technique for production of

  • true to type plants

  • haploid plant

  • somatic hybrids

  • somaclonal plants


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