7th December 2019

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What are the stages of mitosis and what happens in each stage?

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Mitosis and Cytokinesis. During mitosis, when the nucleus divides, the two chromatids that make up each chromosome separate from each other and move to opposite poles of the cell. Mitosis actually occurs in four phases. The phases are called prophase, metaphase, anaphase, and telophase.

Keeping this in consideration, what phase is the spindle formed?

PROPHASE: During the prophase the nucleoli in the nucleus disappear. The chromatin fibers become tightly ccoiled and condense into chromosomes. Chromosomes line up in pairs and are joined at the centromere. In the cytoplasm, the spindle fibers begin to form and are made of microtubules.

What is the first phase of mitosis?

Prophase is the first stage in mitosis, occurring after the conclusion of the G₂ portion of interphase. During prophase, the parent cell chromosomes — which were duplicated during S phase — condense and become thousands of times more compact than they were during interphase.

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What are the four stages of mitosis in order?

Mitosis consists of four basic phases: prophase, metaphase, anaphase, and telophase. Some textbooks list five, breaking prophase into an early phase (called prophase) and a late phase (called prometaphase).

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What is the longest phase of mitosis?

During cell division, the nucleus disappears after prophase. Cell division does not take a long time.Prophase is the longest phase of mitosis, but it occurs faster than interphase. Anaphase is the shortest phase of mitosis. In anaphase, the sister chromatids are pulled apart to opposite ends of the cell.

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How mitosis is important for your body?

It plays an important part in the development of embryos, and it is important for the growth and development of our bodies as well. Mitosis produces new cells, and replaces cells that are old, lost or damaged. In mitosis a cell divides to form two identical daughter cells.

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What are the six stages of the cell cycle?

The cell cycle, which includes interphase (A and 1) and mitosis, is a continuous process. Nevertheless a number of mitotic stages can be defined: prophase (B and 2), metaphase (C and 3), anaphase (mid 4 and late D and 5), telophase (E) and cytokinesis (F and 6). Completion of mitosis usually takes several hours.

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What is the process of mitosis?

These stages are prophase, prometaphase, metaphase, anaphase, and telophase. During mitosis, the chromosomes, which have already duplicated, condense and attach to spindle fibers that pull one copy of each chromosome to opposite sides of the cell.

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What happens in the prophase of mitosis?

Concept 5: Prophase. Chromosomes become visible, the nucleolus disappears, the mitotic spindle forms, and the nuclear envelope disappears. Each duplicated chromosome is seen as a pair of sister chromatids joined by the duplicated but unseparated centromere.

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What happens during the process of mitosis?

What happens during mitosis? During mitosis, a eukaryotic cell undergoes a carefully coordinated nuclear division that results in the formation of two genetically identical daughter cells. Mitosis itself consists of five active steps, or phases: prophase, prometaphase, metaphase, anaphase, and telophase.

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What is the end result of the process of mitosis?

So, the end results of mitosis and meiosis are completely different: Mitosis: One diploid cell → two diploid cells. Goal is cell division. Meiosis: One diploid cell → four haploid cells.

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What happens in the telophase?

Telophase is technically the final stage of mitosis. Its name derives from the latin word telos which means end. During this phase, the sister chromatids reach opposite poles. The small nuclear vesicles in the cell begin to re-form around the group of chromosomes at each end.

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What happens in each of the stages of meiosis?

In meiosis, however, the cell has a more complex task. It still needs to separate sister chromatids (the two halves of a duplicated chromosome), as in mitosis. In each round of division, cells go through four stages: prophase, metaphase, anaphase, and telophase.

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What is mitosis and why is it needed?

Mitosis is the type of cell division used for growth, repair and asexual reproduction. Mitosis occurs wherever new cells are needed. It produces two cells that are identical to each other, and the parent cell.

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What is the final outcome of mitosis?

Nuclear membranes form around each chromosome set. What is the outcome of one mitotic division? Mitosis results in the production of two genetically identical diploid cells. 2 identical daughter cells identical to the parent cell.

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How many cells are produced by mitosis?

The process results in four daughter cells that are haploid, which means they contain half the number of chromosomes of the diploid parent cell. Meiosis has both similarities to and differences from mitosis, which is a cell division process in which a parent cell produces two identical daughter cells.

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What are the three major stages of interphase?

There three stages in interphase occur in a particular order as part of the cell cycle; cells spend a majority of this cycle in interphase.

The Purpose of Interphase. While prokaryotic cells, like bacteria, replicate through binary fission, eukaryotic cells divide through mitosis or meiosis.
G1 Stage.
S Phase.
G2 Stage.

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What divides in mitosis?

The mitosis division process has several steps or phases of the cell cycle—interphase, prophase, prometaphase, metaphase, anaphase, telophase, and cytokinesis—to successfully make the new diploid cells. When a cell divides during mitosis, some organelles are divided between the two daughter cells.

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Which is not part of mitosis?

Interphase is often included in discussions of mitosis, but interphase is technically not part of mitosis, but rather encompasses stages G1, S, and G2 of the cell cycle. The cell is engaged in metabolic activity and performing its prepare for mitosis (the next four phases that lead up to and include nuclear division).

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What is the first phase of mitosis?

Prophase is the first stage in mitosis, occurring after the conclusion of the G₂ portion of interphase. During prophase, the parent cell chromosomes — which were duplicated during S phase — condense and become thousands of times more compact than they were during interphase.

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How many stages are in each phase of the cell cycle?

Mitosis takes place in four stages: prophase (sometimes divided into early prophase and prometaphase), metaphase, anaphase, and telophase. You can learn more about these stages in the video on mitosis. In cytokinesis, the cytoplasm of the cell is split in two, making two new cells.

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