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Reproduction in Organisms Test - 44

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Reproduction in Organisms Test - 44
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Weekly Quiz Competition
  • Question 1
    1 / -0
    The plant which propagate with the help of its leaves is.
  • Question 2
    1 / -0
    Some organisms and their type of reproductions are given below. Find the correct option showing the right pairs.

    (a) Paramecium
    		(1) Spore formation
    (b) Hydra
    		(2) Budding
    (c) Mucor
    		(3) Fission
    (d) Spirogyra
    		(4) Fragmentation
    Solution
    a- 3: Paramecium reproduces by the asexual form of reproduction like fission. The organism generally performs binary fission and the parent cell divides to give two daughter cells. 
    b- 2: Hydra divides asexually by the method of budding. The bud develops and gets detached when matured. The bud can develop into an independent organism after attachment to the substratum. 
    c- 1: The mucor is included in the group of fungi that reproduce by the formation of spores. The spores germinate and then give rise to new hyphal filaments. 
    d- 4: Spirogyra is an alga that reproduces by the process of fragmentation. The filament increases in the length and then divides to form fragments. The fragments then develop to form new Spirogyra. 
    Thus, the correct answer is option D. 
  • Question 3
    1 / -0
    The process of fusion of male gamete and female gamete is called.
    Solution
    The male and the female gamete are the reproductive cells which are formed by the germ cells. These gametes are fuse and the process is known as fertilization. This is an important step in the sexual reproduction which results in the formation of the zygote which develops to form a new individual.
    Thus, the correct answer is option B.  
  • Question 4
    1 / -0
    In which living organism asexual reproduction take place among following?
    Solution
    Reproduction in Amoeba and yeast occurs asexually. Amoeba reproduces by the process of binary fission and the yeast reproduces through budding. Banana plants propagate by removing and transplanting part of the underground stem via an offshoot of the banana plant called a sucker.
    Thus, the correct answer is option D. 
  • Question 5
    1 / -0
    What does the figure indicates given below?

    Solution
    Amoeba reproduces by asexual reproduction through binary fission. In Amoeba, the nucleus divides first and then the cytoplasm divides which results in the formation of two daughter cells which are identical to the parent cell.
    Thus, the correct answer is option A. 

  • Question 6
    1 / -0
    Considering mode of asexual reproduction, match the Column I with II select the correct option.

    		I.

    		II.
    aYeast
    		i.
    		Fragmentation
    bPencillium
    		ii.
    		Zoospores
    cFilamentous algae
    		iii.
    		Budding
    dChlamydomonas
    		iv.
    		Conidia
    Solution
    a. Yeast reproduce by budding. In this, a small outgrowth called bud forms on parent cell that grows and finally breaks off to have an independent existence.
    b. Conidia are asexual reproductive spores produced at the tip of hyphae of Penicillium or in specialized structures called conidiophores. These spores mature when detached from the parent organism.
    c. Filamentous algae such as Spirogyra split into fragments and each fragment develops into an individual organism.
    d. In Chlamydomonas, zoospore formation is the most effective and rapid way of reproduction under favorable environmental conditions. These are the flagellated asexual spores.
    Thus the correct answer is option A.
  • Question 7
    1 / -0
    When gamete fusion is involved in the formation of new organism the phenomenon is known as
    Solution
    Syngamy is a process in sexual reproduction that is defined as the fusion of the male gamete i.e., sperm with the female gamete i.e., egg resulting in the formation of a diploid zygote. Thus the correct answer is option A.
  • Question 8
    1 / -0
    Match the plant and the part in relation to vegetative propagation.
    1) Dahliaa) Eyes
    2) Solanum tuberosumb) Runner
    3) Begoniac) Fasciculated tuberous roots
    4) Cynodond) Epiphyllous buds
    Solution
    • Dahlia plant is propagated by fasciculated tuberous roots.
    • Solanum tuberosum is potato and is propagated with the help of eyes in the potato tuber.
    • Begonia is propagated by epiphyllous buds arising from leaves.
    • Cyanadon is a variety of grass propagated by the runner.
    Thus the correct answer is option C.
  • Question 9
    1 / -0
    Given diagram represents which type of reproduction?

    Solution
    A. Fragmentation is the process of breaking down of parent individual into small pieces or fragments accidentally or through external force. Each piece or fragment develops into a new individual.
    B. Binary fission is the process of division of a parent cell into two daughter cells of equal size. 
    C. Budding is the process in which the parent cell produces one or more bud-like structure which detaches from the parent cell and grows into a new individual.
    D. Sexual reproduction involves the fusion of gametes from two different parents.
    Since the given diagram is showing a bud-like structure, it represents the process of budding. So, the correct answer is option C.
  • Question 10
    1 / -0
    The fusion of gametes is called as
    Solution
    Gametes are a matured sperm (from a male) and a matured egg, or oocyte (from female). Each gamete is haploid (n), that is half the number of DNA required for the growth and development of an organism. Fusion of these two gametes results in a diploid cell (2n) with the right amount of DNA required. A fertilized egg is known as zygote which can develop to form an embryo.
    So, the correct answer is 'Zygote'.
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