Comparing successive phases of mitosis using the compound light microscope.

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Przemysław Orawiec

Comparing successive phases of mitosis using the compound light microscope.

Introduction:

Mitosis is a process in which the mother cell divides to form to identical daughter cells. There are 4 phases of mitosis. In prophase the chromatin condenses to form chromosomes and the centrosomes move to the opposite sites of the cell due to the repulsion of microtubules. In later prophase the nuclear envelope dissolves. The next phase is metaphase. In metaphase the chromosomes line up in the middle of the cell. In anaphase the chromatids separate from each other and are pulled apart by microtubules. In telophase the nuclear envelope forms around the new formed chromosomes which than unfold to chromatin. The cell wall forms and 2 cells separate from each other.

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Research question:

How does the chromatin change throughout mitosis?

Hypothesis:

In prophase chromosomes will be seen inside the nucleus. In metaphase aligned chromosomes in the middle of the cell will be seen. Separate chromatids being pulled apart will be seen in anaphase. In early telophase two nuclei’s inside one cell will be seen.

Explanation of hypothesis:

In prophase the chromatin in nucleus condenses to form chromosomes. In metaphase the chromosomes are line up in the middle of the cell. In anaphase lined up chromosomes are split. The chromatids than are s by microtubules. In early telophase ...

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