Strategies for Enhancement in Food Production

Multiple Choice Questions

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Jumping genes in maize were discovered by

  • Hugo de Vries

  • Barbara McClintock

  • TH Morgan

  • Mendel

B.

Barbara McClintock

Barbara McClintock discovered jumping genes. These are also known as movable genetic elements. They can move from one location to another in the chromosome.

R W Hedges and A E Jacob introduced the term transposon.

Mutation was introduced by Hugo de Vries.

Gene theory was proposed by T H Morgon.

Gregor Johann Mendel is known as Father of Genetics.

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    Triticum vulgare has been found to be presently evolved as

    • diploid

    • tetraploid

    • pentaploid

    • hexaploid

    Answer

    Which of the following plants are used as green manure in crop fields and in sandy soils?

    • Saccharum munja and Lantana camara

    • Dichanthium annulatum and Azolla nilotica

    • Crotalaria juncea and Alhagi camelorum

    • Calotropis procera and Phyllanthus niruri

    Answer

    Select the wrongly matched pair

    • Fibre - Sunhemp

    • Spice - Belladonna

    • Edible oil - Groundnut

    • Fodder - Trifolium

    • Fodder - Trifolium

    Answer

    In honey bee, royal jelly is secreted from :

    • corp gland

    • wax gland

    • pharyngeal gland

    • salivary gland

    Answer
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    Late blight of potato is caused by

    • Cystopus

    • Phytophthora

    • Alternaria

    • Ustilago

    Answer

    The semi dwarf wheat which was instrumental in increasing
    wheat production was developed by

    • Alexander von Humboldt

    • Paul Ehrlich

    • Dr. Kurien

    • Edward Jenner

    • Edward Jenner

    Answer
    Foolish seedling disease of rice in Japan was caused by

    • the deficiency of nitrogen

    • a bacterium

    • a fungus

    • a virus

    Answer
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