Self Studies
Self Studies
Self Studies
Self Studies

Sexual Reproduction in Flowering Plants Test - 32

Result Self Studies

Sexual Reproduction in Flowering Plants Test - 32
  • Score

    -

    out of -
  • Rank

    -

    out of -
TIME Taken - -
Self Studies

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Self Studies Self Studies
Weekly Quiz Competition
  • Question 1
    1 / -0
    Hybridization involves
    Solution
    Hybridization is a technique of artificial pollination in which by spreading the stamens on female stigma the process of breeding completed. This technique is used for developing desirable traits in different species.
  • Question 2
    1 / -0
    Which of the following plant seeds are used as "jeweller's weight"
  • Question 3
    1 / -0
    Pollination occurs when a pollen grain ____________.
    Solution
    Pollination is the process by which pollen is transferred from the anther to the stigma of the same plant or different plant of the same species through a pollinating agent. Thus, enables fertilization and reproduction.
    Thus, the correct answer is (B).
  • Question 4
    1 / -0
    Seed develop from
    Solution
    Seeds develop from the ovules in the ovary after they have been fertilized by the male gametes from the pollen
    So, the correct answer is 'ovules'
  • Question 5
    1 / -0
    When anthers and stigma mature at the same time, it is called as 
    Solution
    Homogamy - In this case the anther and stigmas of a bisexual flower mature simultaneously. The pollen grains reach the mature stigma either by contact, wind, gravity, rain drop or even insects. Self pollination brought about by contact is called autogamy and remaining agencies perform indirect autogamy.
  • Question 6
    1 / -0
    The maturation of male (anthers) and female (stigma) structures at different times in the same flower (in order to reduce the possibility of self pollination) is called 
    Solution
    • Dichogamy is the maturation of male and female parts of a flower at different times, preventing automatic self - pollination.
    • Dichotomy is a division of organisms into two groups, typically based on a characteristic present in one group and absent in the other. The dichotomous key is a tool that scientists use to determine the classification of living things in the natural world - from trees to animals to fungus.
    • Dicliny is the presence of only one kind of reproductive whorl in a flower. It is thus called unisexuality.
    • Dioecy is a characteristic of a species, meaning that it has distinct individual organisms that produce male or female gametes, either directly (in animals) or indirectly (in seed plants). In dioecious species, plants generally bear either male or female flowers throughout their life span. 

    So, the correct answer is option A.
  • Question 7
    1 / -0
    In which one of the following pollination is autogamous?
    Solution
    Correct Option: A
    Explanation:

    Flowers that remain close to avoid cross-pollination and exhibit modifications to facilitate self-pollination are referred to as cleistogamous flowers.
    Thus, c    leistogamous flowers are those that do not open at all and only autogamy occurs.
    For example Vilia, Oxalis, etc. 
  • Question 8
    1 / -0
    In monocots, male gametophyte is 
    Solution
    Microspores are land plant spores that develop into male gametophytes. Microspores are structures that are part of the alternation of generations in many seedless vascular cryptogams, all gymnosperms and all angiosperms. Microspores are halpoid and are produced from diploid microsporocytes by meiosis.
  • Question 9
    1 / -0
    Pollination is
    Solution
    The transfer of pollen grain from the anther to the stigma of a pistil is called pollination. It is a mechanism by which non-motile male and female gametes are brought together for the fertilization. Following are the types of pollination:
    1. Autogamy: The transfer of pollen grain from the anther to the stigma of the same flower.
    2. Geitonogamy: The transfer of pollen grains from the anther to the stigma of another flower of the same plant. This transfer involved an agent of pollination, hence functionally it is cross-pollination. Genetically, it is similar to autogamy since the pollen grains come from the same plant.
    3. Xenogamy: The transfer of pollen grains from the anther to the stigma of another flower of different plants of the same species. This is the only type of pollination which brings generally different types of pollen grains to stigma.
  • Question 10
    1 / -0
    Sage flower is pollinated by
    Solution
    Sage flower is a purple coloured open flower which produces strong nectar. When bee probes male sage flower, the lever bend the stamen and deposits its sticky pollen grains at the back of the bee. But when the bee withdraws the flower, lever returns the stamen to their original position. Whereas moths pollinate tobacco, butterflies pollinate milkweed plants and aphids do not pollinate but harm the plants. Thus, the correct answer is option C.
Self Studies
User
Question Analysis

  • Correct -

  • Wrong -

  • Skipped -

My Perfomance
  • Score

    -

    out of -
  • Rank

    -

    out of -
Re-Attempt Weekly Quiz Competition
Self Studies Get latest Exam Updates
& Study Material Alerts!
No, Thanks
Self Studies
Click on Allow to receive notifications
Allow Notification
Self Studies
Self Studies Self Studies
To enable notifications follow this 2 steps:
  • First Click on Secure Icon Self Studies
  • Second click on the toggle icon
Allow Notification
Get latest Exam Updates & FREE Study Material Alerts!
Self Studies ×
Open Now