BIOLOGY TIMES — January 2018

(ff) #1

  1. Which of the statement regarding Genetic
    Engineering Approval Committee (GEAE) is
    correct?
    (a) Genetic modification of organisms

    can have unpredictable results when such
    organisms are introduced into the ecosystem.
    Therefore, the Indian government has set up
    organisation such as GEAC.
    (b) It ensures the safety of introducing GM
    organisms for public services.
    (c) It makes decision regarding the validity of
    GM research.
    (d) All the above

  2. A leguminous plant consists a structure which
    contains nitrogen fixing bacteria


(a) Nodule (b) Outgrowth
(c) Tumour (d) Root curls



  1. Match the phytohormones with its respective
    functions
    Phytohormone Functions
    A. Abcisic acid i. Triple response
    B. Ethylene ii.Trophic response
    C.Auxin iii.Morphogenesis
    D. Cytokinin iv. Abcission
    (a) A-i, B-ii, C-iii, D-iv
    (b) A-iv, B-i, C-ii, D-iii
    (c) A-ii, B-i, C-iv, D-iii
    (d) A-ii, B-i, C-iii, D-iv

  2. Major pigments of chlorophycean members and
    reserve food material
    (a) Chlorophyll a & c, carotenoids and
    xanthophylls / True starch and sugar
    (b) Chlorophyll a & b, carotenoids and
    xanthophylls/ True starch and sugar
    (c) Chlorophyll c1 & c2, carotenoids and
    xanthophylls/ Floridean starch and sugar
    (d) Chlorophyll a & d, carotenoids and
    xanthophylls/ True starch and sugar

  3. In a typical complete, bisexual and hypogynous
    flower the arrangement of floral whorls on the

    thalamus from the outermost to the innermost is
    (a) Calyx, corolla, androecium and gynoecium


(b) Calyx, corolla, gynoecium and androecium
(c) Gynoecium, androecium, corolla and calyx
(d) Androecium, gynoecium, corolla and calyx


  1. The key events shown by the telophase stage is/
    are
    i. Chromosomes cluster at opposite spindle poles
    and their identity is lost as discrete elements
    ii. Nuclear envelope assembles around the
    chromosome clusters
    iii. Nucleolus, golgi complex and endoplasmic
    reticulum reforms
    (a) i only (b) i & ii only
    (c) ii & iii only (d) All of these

  2. Identify the correct match between types of
    chromosomes and their descriptions
    Chromosomes Position of Centromere
    A. Metacentric 1. At the tip
    B. Submetacentric 2. Almost near the tip
    C. Acrocentric 3. At the middle
    D. Telocentric 4. Slightly away from
    the middle
    (a) A-1, B-3, C-2, D-
    (b) A-4, B-3, C-2, D-
    (c) A-3, B-4 C-2, D-
    (d) A-1, B-2,C-3, D-
    17.Match the following and choose the correct option
    Column I Column II
    A.Coleorhiza 1.Grapes
    B.Food storing tissue 2.Mango
    C. Parthenocarpic fruit 3.Radicle
    D.Single seeded fruit 4. Endosperm
    from monocarpellary
    superior ovary
    (a) A - 3, B - 1, C - 4, D - 2
    (b) A - 4, B - 2, C - 3, D - 1
    (c) A - 4, B - 1, C - 3, D - 2
    (d) A - 3, B - 4, C - 1, D - 2

  3. In the given figure A, B, C, D, E, F represents
    stages of hydrosere. Identify the correct statement
    regarding it.


(a) Salix and Populus occur in stage E, Carex
and Cyprus occur in stage D.
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