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

12th Standard

    Reg.No. :
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Biology

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

    1 Marks

    5 x 1 = 5
  1. While studying the history of domestication of various cultivated plants _______ were recognized earlier

    (a)

    Centres of origin

    (b)

    Centres of domestication

    (c)

    Centres of hybrid

    (d)

    Centres of variation

  2. Match Column I with Column II

    Column I Column II
    i) William S. Gaud I) Heterosis
    ii) Shull II) Mutation breeding
    iii) Cotton Mather III) Green revolution
    iv) Muller and Stadler IV) Natural hybridization
    (a)
    i ii iii iv
    I II III IV
    (b)
    i ii iii iv
    III I IV II
    (c)
    i ii iii iv
    IV II I IV
    (d)
    i ii iii iv
    II IV III I
  3. The quickest method of plant breeding is _______.

    (a)

    Introduction

    (b)

    Selection

    (c)

    Hybridization

    (d)

    Mutation breeding

  4. Desired improved variety of economically useful crops are raised by _______.

    (a)

    Natural Selection

    (b)

    hybridization

    (c)

    mutation

    (d)

    biofertilisers

  5. Plants having similar genotypes produced by plant breeding are called _____.

    (a)

    clone

    (b)

    haploid

    (c)

    autopolyploid

    (d)

    genome

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