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12th Standard English Medium Biology (Botany) Subject Plant Breeding Book Back 1 Mark Questions with Solution Part - II

12th Standard

    Reg.No. :
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Biology

Time : 01:00:00 Hrs
Total Marks : 5

    1 Marks

    5 x 1 = 5
  1. Importing better varieties and plants from outside and acclimatising them to local environment is called _____.

    (a)

    cloning

    (b)

    heterosis

    (c)

    selection

    (d)

    introduction

  2. Dwarfing gene of wheat is ______.

    (a)

    pal 1

    (b)

    Atomita 1

    (c)

    Norin 10

    (d)

    pelita 2

  3. Crosses between the plants of the same variety are called ____.

    (a)

    interspecific

    (b)

    inter varietal

    (c)

    intra varietal

    (d)

    inter generic

  4. Progeny obtained as a result of repeat self pollination a cross pollinated crop to called

    (a)

    pure line

    (b)

    pedigree line

    (c)

    inbreed line

    (d)

    heterosis

  5. Jaya and Ratna are the semi dwarf varieties of ______.

    (a)

    wheat

    (b)

    rice

    (c)

    cowpea

    (d)

    mustard

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