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In Mitosis, there are four stages involved in the separation of chromosomes. It produces two identical sets of chromosomes in two nuclei.
1. Prophase: The double-stranded chromosomes condense, and the nuclear membrane around them degenerates.
2. Metaphase: The chromosomes line up in the middle (equator) of the cell. The centrioles, which produce spindle microtubules, divide and move to either end of the cell. The spindle fibres form.
3. Anaphase: Sister chromatids* are pulled apart by the spindle fibres.
4. Telophase: The chromosomes are at either end of the cell, and new nuclear membranes start to form around them.
*one of two identical copies/strands of DNA which make up a chromosome. They are generally 'X' shaped and joined at a point called the centromere.
What else can I help you with?
In what phase does chromosomes condense and become visible?
The chromosomes in a cell's nucleus are only visible during the part of the cell cycle known as prophase. Prophase is the stage of mitosis in which chromatin condensation occurs.
What stage does chromatin condense to chromosomes?
During mitosis, chromosomes are in their most condensed form during metaphase
What stage occurs when crossing over occurs in meiosis?
Prophase I of Meiosis.
What phase of mitosis does two centrioles appear to one side of the nucleus?
The presence of two centrioles on one side of the nucleus indicates that the cell is in the prophase stage of mitosis. During prophase, the centrioles move to opposite poles of the cell, forming the mitotic spindle that will help separate the chromosomes during cell division.
What cellular structures move to opposite ends of the cell during prophase?
It's the CENTRIOLES and their star-like radiating structures, called asters.This is Stage 1 in Mitosis:Chromatin in the nucleus condenses to form chromosomes. The pairs of centrioles move to the opposite sides of the nucleus. Spindle fibers form a bridge between the ends of the cell. The nuclear envelope breaks down.
What phase do chromosomes condense and form?
Chromosomes condense and form during the prophase stage of mitosis. This is when the chromatin fibers in the nucleus tighten and become visible as distinct structures through a microscope.
During which stage of mitosis does the nucleus break down?
The breakdown of the nucleus occurs in the prophase stage of mitosis. This is when the nuclear envelope disintegrates, allowing the chromosomes to be released into the cytoplasm for subsequent division.
What is another term for resting phase in the early prophase?
Another term for the resting phase in the early prophase of the cell cycle is the "pre-prophase stage." This stage marks the transition between interphase and prophase, where the cell prepares for nuclear division by condensing its chromatin and organizing its microtubule structures.
In what phase does chromosomes condense and become visible?
The chromosomes in a cell's nucleus are only visible during the part of the cell cycle known as prophase. Prophase is the stage of mitosis in which chromatin condensation occurs.
What happens during prophase in the cell division?
Cell division includes a stage known as mitosis (meiosis in gametic cells), which has four phases: prophase, metaphase, anaphase and telophase. Each stage can be differentiated under a microscope by the physical changes visible in the cells nucleus; particularly the chromosomal alignment. In prophase chromatids condense to form chromosomes, the mitotic spindle forms and the nucleur membrane breaks down.
When do chromosomes become visible in the nucleus of a cell?
Chromosomes become visible in the nucleus of a cell during cell division, specifically during the prophase stage of mitosis or meiosis when the DNA condenses and coils tightly. This allows the chromosomes to be distinguished under a microscope.
What stage of the cell's life cycle do the chromosomes become visible?
Chromosomes become visible during the prophase stage of the cell cycle, when they condense and can be seen under a microscope as distinct structures. This marks the beginning of cell division.
What stage does chromatin condense to chromosomes?
During mitosis, chromosomes are in their most condensed form during metaphase
During what cell cycle phase is the spindle formed?
The spindle is formed during the prophase stage of mitosis or meiosis. In prophase, microtubules organize into a structure called the spindle apparatus, which helps separate the chromosomes during cell division.
What stage occurs when crossing over occurs in meiosis?
Prophase I of Meiosis.
What phase of mitosis does two centrioles appear to one side of the nucleus?
The presence of two centrioles on one side of the nucleus indicates that the cell is in the prophase stage of mitosis. During prophase, the centrioles move to opposite poles of the cell, forming the mitotic spindle that will help separate the chromosomes during cell division.
What cellular structures move to opposite ends of the cell during prophase?
It's the CENTRIOLES and their star-like radiating structures, called asters.This is Stage 1 in Mitosis:Chromatin in the nucleus condenses to form chromosomes. The pairs of centrioles move to the opposite sides of the nucleus. Spindle fibers form a bridge between the ends of the cell. The nuclear envelope breaks down.
