In a cell cycle, during which phase are chromosomes arranged on the eq...
During metaphase, the chromosomes get arranged in the form of a plate called the equatorial plate or metaphase plate at the equator of the spindle. This plate is at right angles to the axis of the spindle and is formed of the kinetochores, the arms of chromatids trailing away. The centromeres are drawn to the equator by the equal pull of two chromosomal fibres which connect the sister kinetochores to the opposite poles. The process of drawing the chromosomes onto the equator of the spindle is known as congression.
In a cell cycle, during which phase are chromosomes arranged on the eq...
Metaphase is the stage of the cell cycle during which chromosomes are arranged on the equatorial plate or the metaphase plate.
Explanation:
• The cell cycle is the series of events that occur in a cell leading to its division and duplication.
• The cell cycle consists of two main stages, interphase and the M phase (mitosis).
• Mitosis is the process of cell division, during which the duplicated chromosomes are separated into two identical nuclei.
• Mitosis consists of four stages, prophase, metaphase, anaphase, and telophase.
• During prophase, the chromatin condenses into visible chromosomes, the nuclear envelope breaks down, and the spindle fibers form.
• During metaphase, the spindle fibers attach to the centromeres of the chromosomes and align the chromosomes on the equatorial plate or the metaphase plate.
• During anaphase, the spindle fibers shorten and pull the sister chromatids apart, towards the opposite poles of the cell.
• During telophase, the nuclear envelope reforms around the separated chromosomes, and the spindle fibers break down.
Conclusion:
• Therefore, during the metaphase stage of mitosis, the chromosomes are arranged on the equatorial plate or the metaphase plate.