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Cell Biology Te...

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  • Question 1
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    In which of the following stages of mitosis do chromosomes decondense and lose their individuality after having reached their respective poles?

  • Question 2
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    In which of the following stages of mitosis does the centriole begin to move towards opposite poles of the cell?

  • Question 3
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    Which of the following features do(es) not belong to metaphase?

    a. Spindle fibres attach to kinetochores of the chromosomes.
    b. At the end of metaphase, the cells do not show golgi complexes, endoplasmic reticulum, nucleolus and the nuclear envelope.
    c. Chromosomes are moved to spindle equator and get aligned along the metaphase plate.

  • Question 4
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    Telophase is the final stage of mitosis. Which of the following is/are not the characteristic(s) of telophase?

    a. Golgi complex and ER reform.
    b. Nuclear envelope assembles around the chromosome clusters.
    c. Chromosomes cluster at opposite spindle poles.
    d. Chromatids move to opposite poles.

  • Question 5
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    Which of the following statements about the significance of mitosis is false?

  • Question 6
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    The kind of cell division that reduces the chromosome number by half and results in the production of haploid daughter cells is called meiosis. Which of the following is not a characteristic of meiosis?

  • Question 7
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    Match the following:

    a. Leptotene stage 1. During this stage, chromosomes start pairing together and this process is called synapsis.
    b. Zygotene stage 2. During this stage, under a light microscope, chromosomes become gradually visible.
    c. Pachytene stage 3. During this stage, bivalent chromosomes clearly appear as tetrads.

  • Question 8
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    Which of the following statements is/are false?

    a. Prophase of the mitosis division is longer and more complex than the prophase of first meiotic division.
    b. Mitosis accomplishes the segregation of duplicated chromosomes into daughter nuclei.
    c. During cytoplasmic division, mitochondria and plastids get distributed between the two daughter cells.

  • Question 9
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    Chiasmata are x-shaped structures. Which of the following stages is marked by the terminalisation of chiasmata?

  • Question 10
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    Match the following:

    a. Anaphase 2 1. In this stage, the chromosomes again become compact and by the end of this stage, the nuclear membrane disappears.
    b. Metaphase 2 2. In this stage, the chromosomes align at the equator.
    c. Prophase 2 3. This stage begins with the simultaneous splitting of the centromere of each chromosome.

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