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In metaphase, spindle fibers grow and attach to chromosomes. In anaphase, they pull the chromosomes apart. In telephase, they disappear.
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Describe the structure and function of the spindle during mitosis?
Spindle fibers are necessary in mitosis as they help in bringing half the number of chromosomes on each side of the cell, so that when the cell divides, the chromosomes are distributed equally in both the daughter nuclei.
What does not distinguish mitosis in plant cells from mitosis in animal cells?
A plant cell, during mitosis, has no centriole, so in the second phase [metaphase], spindle fibers do not connect to the [missing] centriole that move in opposite directions in animal cell mitosis. Also, instead of having a cleavage, like in animal cell mitosis, a cell plate forms. Animal cells do not have centrioles so the spindle fibers do not connect to centrioles and move to opposite poles, spindle fibers are instead formed by microtubules. Additionally, in the telophase in plant cells, the cytoplasm does not narrow or compress, a cell plate is instead formed in the centre of the cell and this divides it into two daughter cells.
Produce spindle fibers?
Centrioles. They are visible during metaphase, the second stage of mitosis. Added: Centrosomes. Centrioles are present in animal cells but are, seemingly, not needed to mount a spindle apparatus. Plant cells get along very well without centrioles.
When does the spindle fiber formed?
Spindle fibers are formed during the metaphase stage of mitosis (cell division) when the chromosomes are tightly condensed and aligned at the center of the cell. Spindle fibers pull the chromosomes in opposite directions toward the opposite poles thus allowing the daughter cells to obtain a copy of the genome
What type of cells can you not use for a karyotype?
Any undergoing mitosis
What equally divides chromatids between offspring cells?
Spindle fibers
What do spindle fibers and chromosomes form?
make copies of cells - mitosis
What happens to chromosomes after mitosis?
Cells are moved forward through the chromosomes and attached into the spindle fibers. The nuclei of the cell dissolves to make room for the spindle fibers.
What organelle structures involved in mitosis in animal cells only?
In animal cells... Centrioles, asters and the spindle fibers.
During mitosis in animal cells spindle fibers extend from the centrioles which are located at opposite sides of the cells true or false?
true
What would happen if the spindle fibers did not form in a cell that is undergoing mitosis?
If spindle fibers failed to form in a cell during division, both daughter cells would become non-viable shortly after division. The spindle fibers pull one set of chromosomes into each of the daughter cells, so without them there cannot be an equal division of genetic material.
Describe the structure and function of the spindle during mitosis?
Spindle fibers are necessary in mitosis as they help in bringing half the number of chromosomes on each side of the cell, so that when the cell divides, the chromosomes are distributed equally in both the daughter nuclei.
Which type of cell has spindle fibers?
Animal cells have spindle fibers in them.
What are the fibers that chromosomes move along?
Centrioles are found in the centrosomes. They produce the spindle fibers used to move chromosomes during mitosis. Chromatin is loosely coiled DNA found in the nucleus of cells not undergoing mitosis.
Why skin cells undergoing mitosis continously?
All cells are undergoing mitosis continuously to replace, cells that are dying continuously.
What does not distinguish mitosis in plant cells from mitosis in animal cells?
A plant cell, during mitosis, has no centriole, so in the second phase [metaphase], spindle fibers do not connect to the [missing] centriole that move in opposite directions in animal cell mitosis. Also, instead of having a cleavage, like in animal cell mitosis, a cell plate forms. Animal cells do not have centrioles so the spindle fibers do not connect to centrioles and move to opposite poles, spindle fibers are instead formed by microtubules. Additionally, in the telophase in plant cells, the cytoplasm does not narrow or compress, a cell plate is instead formed in the centre of the cell and this divides it into two daughter cells.
Produce spindle fibers?
Centrioles. They are visible during metaphase, the second stage of mitosis. Added: Centrosomes. Centrioles are present in animal cells but are, seemingly, not needed to mount a spindle apparatus. Plant cells get along very well without centrioles.
