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Chromosomes and Cell Nucleus
The first observable change in a cell beginning to undergo fission is replication of its DNA. This is followed by the formation of a constriction in the cell membrane, leading to the splitting of the cell into two daughter cells.
At the beginning of cell division, chromosomes condense and align along the cell's equator in a single file during the metaphase stage of mitosis or meiosis. This alignment ensures that each daughter cell receives an equal and identical set of chromosomes during the subsequent separation.
The stage of mitosis associated with the beginning of cell division is telophase. This is when the nuclear envelope reforms around the newly divided chromosomes in each daughter cell, preparing them for cytokinesis, which is the actual physical splitting of the cell into two.
At the beginning of metaphase, all chromosomes are aligned along the cell's equator with each sister chromatid attached to opposite poles of the cell by the spindle fibers. This alignment ensures that each daughter cell receives an identical set of chromosomes during cell division.
Cell cycle Is the period of time from the beginning of one cell division to the beginning of the next
Chromosomes and Cell Nucleus
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Chromosomes and Cell Nucleus
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A cell makes up life. It is the beginning of all.
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In the beginning of the eukaryotic cell cycle, the cell undergoes a phase called G1, where it grows and carries out normal functions. During this phase, the cell also duplicates its organelles and prepares for DNA replication in the subsequent phases.
The first observable change in a cell beginning to undergo fission is replication of its DNA. This is followed by the formation of a constriction in the cell membrane, leading to the splitting of the cell into two daughter cells.
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