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22 March, 15:03

If you look through a microscope and see a cell with chromosomes lined up two by two, what stage of cellular reproduction must you be looking at?

1. mitosis only

2. meiosis I only

3. meiosis II only

4. either mitosis or meiosis I

5. either meiosis I or meiosis II

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Answers (1)
  1. 22 March, 18:51
    0
    2. meiosis I only

    Explanation:

    During the zygotene stage of prophase-I of meiosis-I, homologous chromosomes synapse and are paired up. These paired homologous chromosomes are called bivalents. These paired homologous chromosomes align themselves at the equatorial plate of the cell during metaphase-I. Therefore, when observed through a microscope, cells are shown lined up two by two. During meiosis-II and mitosis, individual chromosomes with two sister chromatids are aligned at the cell's equator in metaphase.
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Home » Biology » If you look through a microscope and see a cell with chromosomes lined up two by two, what stage of cellular reproduction must you be looking at? 1. mitosis only 2. meiosis I only 3. meiosis II only 4. either mitosis or meiosis I 5.
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