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Sexual Reproduction in Flowering Plants Test - 19

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Sexual Reproduction in Flowering Plants Test - 19
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Which of the following is not a method of removing sexual incompatibility?
  • Question 2
    1 / -0

    Which of the following occupies central position in flower

    Solution

    Bisexual flower have four main parts. Pistil or carpel is located at center followed by stamen, carpel and sepals. Pistil contains stigma, style and ovary.

  • Question 3
    1 / -0

    Which type of flower have ovary superior?

    Solution

    In hypogynous flower ovary is located at highest position on thalamus of flower. Other floral parts are below it. These kinds of flower are called ovary superior.

  • Question 4
    1 / -0

    The flower which do not open at all are called

    Solution

    Cleistogamy or automatic self-pollination describes the trait of certain plants to propagate by using non-opening, self-pollinating flowers. Especially well known in peanuts, peas, and beans, this behavior is most widespread in the grass family.

  • Question 5
    1 / -0
    Filament is the long and slender stalk. Its proximal end is attached to the
  • Question 6
    1 / -0
    A flower is a modified shoot. Which of the following parts of a flower is made-up of one to many stamens?
  • Question 7
    1 / -0
    An embryo develops from diploid cell of nucellus or integument in
  • Question 8
    1 / -0
    Which of the following statements is/are false?

    a. The fusion of two male gametes with two different cells of different female gametophyte is called double fertilisation.
    b. Fertilisation is porogamous if the pollen tube enter the ovule through chalaza or integuments.
    c. Entry of pollen tube into style is facilitated by secretion of pectinases and hydrolytic enzymes.
  • Question 9
    1 / -0
    Match the following:
    a. Apogamy 1. It is the formation of an embryo sac directly from a nucellus cell or diploid megaspore mother cell. 
    b. Apospory 2. It is the formation of gametophyte directly from a sporophyte without the formation of spores. 
    c. Recurrent agamospermy 3. It is the formation of sporophyte directly from a gametophyte without the formation of gametes.
  • Question 10
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    Which of the following represents the basal part of the ovule and is opposite to the micropylar end?
  • Question 11
    1 / -0
    In which of the following, the first mitotic division of primary endospermic cell is accompanied by cytokinesis and further nuclear divisions are not accompanied by cytokinesis?
  • Question 12
    1 / -0
    In haploid parthenogenesis, a normal haploid egg develops into a haploid embryo. Haploid parthenogenesis occurs in which of the following plants?

    a. Banana
    b. Cucumber
    c. Solanum
    d. Oenothera
  • Question 13
    1 / -0

    Insect pollinated flowers are

    Solution

    The flower in which pollen grain is transferred from anther to stigma of anther flower by insects are colorful to attract insects and contain nectar.

  • Question 14
    1 / -0
    Which of the following wall layers help(s) in dehiscence of anther and perform(s) the function of protection?

    a. Epidermis
    b. Tapetum
    c. Endothecium
    d. Middle layer                                       
  • Question 15
    1 / -0

    During Hybridisation process anther of bisexual flower is removed before it dehisces is called

    Solution

    Hybridisation is the process to develop hybrid plants with desired traits. In bisexual flower, the stamen is removed with the help of forceps to avoid self-pollination. This method is called emasculation.

  • Question 16
    1 / -0
    Match the following:
    a. Unitegmic ovules 1. They are the ovules with two integuments. Example: Monocots
    b. Bitegmic ovules 2. They are the ovules without integument. Example: Santalum
    c. Tritegmic ovules 3. They are the ovules with one integument. Example: Higher dicots
    d. Ategmic ovules 4. They are the ovules with three integuments (rarely ovule). Example: Asphodelus
  • Question 17
    1 / -0
    Which of the following flowers is a bisexual, homogamous and pollination takes place in it prior to its opening?
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