Understanding Stages of Mitosis - Biology
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Mitosis and meiosis are similar and often incorrectly thought of as the same process. Which of these best explains their differences?
Mitosis and meiosis are similar and often incorrectly thought of as the same process. Which of these best explains their differences?
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There are many ways that mitosis and meiosis differ, in this question we are primed to look at the differences in the end products of each type of cell division.
Mitosis creates two new cells that are identical to the parent cell (diploid). Meiosis creates 4 new cells with half the genetic information (haploid) in each cell, and the cells are nonidentical to the parent cell and to their sister cells.
There are many ways that mitosis and meiosis differ, in this question we are primed to look at the differences in the end products of each type of cell division.
Mitosis creates two new cells that are identical to the parent cell (diploid). Meiosis creates 4 new cells with half the genetic information (haploid) in each cell, and the cells are nonidentical to the parent cell and to their sister cells.
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Which stage of mitosis exhibits chromatids lining up on the equatorial plate?
Which stage of mitosis exhibits chromatids lining up on the equatorial plate?
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Prophase- spindles forming, chromosomes condense, and the nuclear membrane begins to break down
Prometaphase- microtubules grow
Metaphase- chromatids are lined up in the center of the cell on the equatorial plate
Anaphase- the two chromatids of the chromosome are pulled apart at the centromere
Telophase- new nuclear membranes form around each set of chromosomes, the spindles break down, and chromosomes decondense
Prophase- spindles forming, chromosomes condense, and the nuclear membrane begins to break down
Prometaphase- microtubules grow
Metaphase- chromatids are lined up in the center of the cell on the equatorial plate
Anaphase- the two chromatids of the chromosome are pulled apart at the centromere
Telophase- new nuclear membranes form around each set of chromosomes, the spindles break down, and chromosomes decondense
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Which stage of mitosis exhibits the two chromatids of the chromosome are pulled apart at the centromere?
Which stage of mitosis exhibits the two chromatids of the chromosome are pulled apart at the centromere?
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Prophase- spindles forming, chromosomes condense, and the nuclear membrane begins to break down
Prometaphase- microtubules grow
Metaphase- chromatids are lined up in the center of the cell on the equatorial plate
Anaphase- the two chromatids of the chromosome are pulled apart at the centromere
Telophase- new nuclear membranes form around each set of chromosomes, the spindles break down, and chromosomes decondense
Prophase- spindles forming, chromosomes condense, and the nuclear membrane begins to break down
Prometaphase- microtubules grow
Metaphase- chromatids are lined up in the center of the cell on the equatorial plate
Anaphase- the two chromatids of the chromosome are pulled apart at the centromere
Telophase- new nuclear membranes form around each set of chromosomes, the spindles break down, and chromosomes decondense
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Which stage of mitosis exhibits the spindles forming and chromosomes condensing?
Which stage of mitosis exhibits the spindles forming and chromosomes condensing?
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Prophase- spindles forming, chromosomes condense, and the nuclear membrane begins to break down
Prometaphase- microtubules grow
Metaphase- chromatids are lined up in the center of the cell on the equatorial plate
Anaphase- the two chromatids of the chromosome are pulled apart at the centromere
Telophase- new nuclear membranes form around each set of chromosomes, the spindles break down, and chromosomes decondense
Prophase- spindles forming, chromosomes condense, and the nuclear membrane begins to break down
Prometaphase- microtubules grow
Metaphase- chromatids are lined up in the center of the cell on the equatorial plate
Anaphase- the two chromatids of the chromosome are pulled apart at the centromere
Telophase- new nuclear membranes form around each set of chromosomes, the spindles break down, and chromosomes decondense
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What is interphase?
What is interphase?
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It is important to remember that interphase is not actually a part of mitosis, but rather is the preparation phase, setting the stage for mitosis to occur. Cells spend most of their time in this phase. During interphase the cells make copies of its structures and duplicates its chromosomes during DNA synthesis. The G1, S phase, and G2 phase all make up interphase, (if you remember from the previous question).
It is important to remember that interphase is not actually a part of mitosis, but rather is the preparation phase, setting the stage for mitosis to occur. Cells spend most of their time in this phase. During interphase the cells make copies of its structures and duplicates its chromosomes during DNA synthesis. The G1, S phase, and G2 phase all make up interphase, (if you remember from the previous question).
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Please name the first stage of mitosis and two things that occurs during this phase.
Please name the first stage of mitosis and two things that occurs during this phase.
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Prophase is the first stage of mitosis. The cell cytoplasm and nucleus undergo several changes. At this point the mitotic spindle is forming but the nucleus is still intact. In this phase the chromosomes become tightly packed and the nucleoli disappear. Each chromosome is paired with its sister chromatid joined in the middle at the centromere.
Prophase is the first stage of mitosis. The cell cytoplasm and nucleus undergo several changes. At this point the mitotic spindle is forming but the nucleus is still intact. In this phase the chromosomes become tightly packed and the nucleoli disappear. Each chromosome is paired with its sister chromatid joined in the middle at the centromere.
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What are two major events that occur in prometaphase?
What are two major events that occur in prometaphase?
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During premetaphase the nuclear envelop has broken down and this allows the spindle, or the microtubules, begin to attach to the chromosomes at the kinetochore. The microtubules begin to put force on the chromosomes to begin moving them to the middle of the cell.
During premetaphase the nuclear envelop has broken down and this allows the spindle, or the microtubules, begin to attach to the chromosomes at the kinetochore. The microtubules begin to put force on the chromosomes to begin moving them to the middle of the cell.
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What phase is the cell above currently in? How can you tell?
What phase is the cell above currently in? How can you tell?
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The condensed chromosomes are aligned on the metaphase plate (an imaginary line in the middle of the cell). They align this way because of the microtubules that are pulling them to the opposite sides.
The condensed chromosomes are aligned on the metaphase plate (an imaginary line in the middle of the cell). They align this way because of the microtubules that are pulling them to the opposite sides.
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At which phase of mitosis are the chromosomes separated and move to each side of the cell?
At which phase of mitosis are the chromosomes separated and move to each side of the cell?
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Anaphase is where the duplicated chromosomes split, disconnected at the centromere, and each sister chromatid is moved towards opposite sides of the cells.
Anaphase is where the duplicated chromosomes split, disconnected at the centromere, and each sister chromatid is moved towards opposite sides of the cells.
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Telophase is the next phase in mitosis. List two things that occur during this phase.
Telophase is the next phase in mitosis. List two things that occur during this phase.
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Important indications that the cell is in telophase are that the chromosomes have been moved towards the opposite sides of the cell. The nuclear envelope does begin to form around the new respective nucleus of each daughter cell and the cell itself begins the stages of cytokinesis, or this splitting of the cell into two daughter cells.
Important indications that the cell is in telophase are that the chromosomes have been moved towards the opposite sides of the cell. The nuclear envelope does begin to form around the new respective nucleus of each daughter cell and the cell itself begins the stages of cytokinesis, or this splitting of the cell into two daughter cells.
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What term refers to the cell splitting into two daughter cells?
What term refers to the cell splitting into two daughter cells?
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Cytokinesis is the division of the cell into two respective daughter cells. Cytokinesis can start as early as anaphase and moves through with telophase. The most important thing in this part of the process is to make sure that there is one nucleus in each new cell being formed. A protein filament ring, called the contractile ring, causes the middle of the cell to shrink and pinch off to form the two separate daughter cells.
Cytokinesis is the division of the cell into two respective daughter cells. Cytokinesis can start as early as anaphase and moves through with telophase. The most important thing in this part of the process is to make sure that there is one nucleus in each new cell being formed. A protein filament ring, called the contractile ring, causes the middle of the cell to shrink and pinch off to form the two separate daughter cells.
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In what stage of mitosis is the cell shown in?
In what stage of mitosis is the cell shown in?
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The cell in the picture about is in the prometphase stage. Key indicators of this phase are the breakdown of the nuclear envelope around the genetic material and the spindle beginning to interact with the chromosomes.
The cell in the picture about is in the prometphase stage. Key indicators of this phase are the breakdown of the nuclear envelope around the genetic material and the spindle beginning to interact with the chromosomes.
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In what phase of mitosis is the cell shown?
In what phase of mitosis is the cell shown?
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The cell pictured above is in prophase. Key indicators that the cell is in this stage are that the nuclear envelope is still intact and chromosomes have become condensed and paired up with sister chromatids.
The cell pictured above is in prophase. Key indicators that the cell is in this stage are that the nuclear envelope is still intact and chromosomes have become condensed and paired up with sister chromatids.
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List the stages of Mitosis.
List the stages of Mitosis.
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Interphase would be first as this is the part of the cycle cycle that the cell prepares to enter Mitosis. The key indicators of prophase are that the nuclear envelope is still intact and the chromosomes are beginning to pair up sister chromatids. The mitotic spindle is also beginning to form. Premetaphase, the next phase, is when the spindle has attached itself to the respective chromosomes and they begin to migrate to the center of the cell. In Metaphase the chromosomes have lined up on the mitotic plate and beginning to separate. In anaphase each sister chromatid moves to its respective side of the cell, as it is being pulled there by the mitotic spindle. The last phase of mitosis is telophase, which is indicated by the beginning of the cell splitting into two, called cytokinesis.
Interphase would be first as this is the part of the cycle cycle that the cell prepares to enter Mitosis. The key indicators of prophase are that the nuclear envelope is still intact and the chromosomes are beginning to pair up sister chromatids. The mitotic spindle is also beginning to form. Premetaphase, the next phase, is when the spindle has attached itself to the respective chromosomes and they begin to migrate to the center of the cell. In Metaphase the chromosomes have lined up on the mitotic plate and beginning to separate. In anaphase each sister chromatid moves to its respective side of the cell, as it is being pulled there by the mitotic spindle. The last phase of mitosis is telophase, which is indicated by the beginning of the cell splitting into two, called cytokinesis.
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What is the difference in chromosome number, in each daughter cell, between mitosis and meiosis?
What is the difference in chromosome number, in each daughter cell, between mitosis and meiosis?
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Mitosis has only one round of chromosome separation and creates all cells, other than sex cells. For example skin cells. This process ends with two diploid cells that are genetically identical to the parent cell.
Meiosis is the process that generates the cells that occur in sexual reproduction cells, otherwise known as gametes. This process, since it has two rounds of chromosome separation, will end with 4 haploid cells, or half the genetic information of the parent cell.
Mitosis has only one round of chromosome separation and creates all cells, other than sex cells. For example skin cells. This process ends with two diploid cells that are genetically identical to the parent cell.
Meiosis is the process that generates the cells that occur in sexual reproduction cells, otherwise known as gametes. This process, since it has two rounds of chromosome separation, will end with 4 haploid cells, or half the genetic information of the parent cell.
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In which phase has the cell left the cell cycle and has stopped dividing, in other words, which of the following is the resting phase?
In which phase has the cell left the cell cycle and has stopped dividing, in other words, which of the following is the resting phase?
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G0 phase is a post-mitotic phase. It may be a permanent (as often is the case for neurons) or semi-permanent (for some liver, kidney, and stomach cells) phase. Epithelial cells do not enter G0, allowing these cells to continue to divide throughout an organisms life.
G0 phase is a post-mitotic phase. It may be a permanent (as often is the case for neurons) or semi-permanent (for some liver, kidney, and stomach cells) phase. Epithelial cells do not enter G0, allowing these cells to continue to divide throughout an organisms life.
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In what phase of mitosis is the cell shown?
In what phase of mitosis is the cell shown?
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The cell pictured above is in prophase. Key indicators that the cell is in this stage are that the nuclear envelope is still intact and chromosomes have become condensed and paired up with sister chromatids.
The cell pictured above is in prophase. Key indicators that the cell is in this stage are that the nuclear envelope is still intact and chromosomes have become condensed and paired up with sister chromatids.
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The stage of mitosis during which sister chromatids line up in the middle of the cell is .
The stage of mitosis during which sister chromatids line up in the middle of the cell is .
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Metaphase is the stage of cell division during which the sister chromatids line up along the metaphase plate in the center of the cell.
Interphase is the stage of the cell cycle during which the cell prepares for cell division. The cell spends most of its life cycle in interphase, during which is transcribes genes, synthesizes proteins, and performs most of its intended functions. Interphase is not generally considered a phase of mitosis.
Prophase is the stage of the cell cycle during which the chromatin condenses into chromosomes and the nuclear envelope dissolves.
Anaphase occurs when the sister chromatids that have lined up along the metaphase plate separate and are pulled to opposite poles of the cell by the spindle fibers.
Telophase occurs when two daughter nuclei form in the two new cells at the conclusion of mitosis.
The order of mitosis is: prophase, metaphase, anaphase, telophase, (interphase).
Metaphase is the stage of cell division during which the sister chromatids line up along the metaphase plate in the center of the cell.
Interphase is the stage of the cell cycle during which the cell prepares for cell division. The cell spends most of its life cycle in interphase, during which is transcribes genes, synthesizes proteins, and performs most of its intended functions. Interphase is not generally considered a phase of mitosis.
Prophase is the stage of the cell cycle during which the chromatin condenses into chromosomes and the nuclear envelope dissolves.
Anaphase occurs when the sister chromatids that have lined up along the metaphase plate separate and are pulled to opposite poles of the cell by the spindle fibers.
Telophase occurs when two daughter nuclei form in the two new cells at the conclusion of mitosis.
The order of mitosis is: prophase, metaphase, anaphase, telophase, (interphase).
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A cell is arrested during mitosis. At this stage, distinct chromatids are visible at opposite poles of the cell. Which stage of mitosis does this describe?
A cell is arrested during mitosis. At this stage, distinct chromatids are visible at opposite poles of the cell. Which stage of mitosis does this describe?
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The phases of mitosis can be described as follows:
During prophase chromatin condenses to form discrete chromosomes.
During metaphase microtubules attach to the kinetochores and chromatids begin segregating.
During anaphase sister chromatids have been separated and reside at opposite poles of the cell.
During telophase both sets of chromatids are surround by new nuclear membranes and chromosomes decondense into chromatin.
Cytokinesis (the dividing of the cytoplasm into two cells) follows telophase.
If the cell were arrested during telophase, distinct chromatids would no longer be visible.
The phases of mitosis can be described as follows:
During prophase chromatin condenses to form discrete chromosomes.
During metaphase microtubules attach to the kinetochores and chromatids begin segregating.
During anaphase sister chromatids have been separated and reside at opposite poles of the cell.
During telophase both sets of chromatids are surround by new nuclear membranes and chromosomes decondense into chromatin.
Cytokinesis (the dividing of the cytoplasm into two cells) follows telophase.
If the cell were arrested during telophase, distinct chromatids would no longer be visible.
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Which of the following events does not take place in prophase?
Which of the following events does not take place in prophase?
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Prophase is the first stage of mitosis, during which the cell begins to position itself in order to separate the chromatids and divide. During prophase, the nuclear envelope and nucleolus are dissolved and the chromosomes condense. The centrioles and spindle fibers begin to form at opposite poles of the cell.
Chromatid separation is not seen until anaphase.
Prophase is the first stage of mitosis, during which the cell begins to position itself in order to separate the chromatids and divide. During prophase, the nuclear envelope and nucleolus are dissolved and the chromosomes condense. The centrioles and spindle fibers begin to form at opposite poles of the cell.
Chromatid separation is not seen until anaphase.
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