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MitosisLab.docx - Cody Dzurisin AP Biology Mrs Sindaco 18...

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Cody Dzurisin AP Biology Mrs. Sindaco 18 January 2017 Mitosis Study Lab Partner: Breonna Hanahan Introduction Before starting this lab, it is important to know how to use a microscope and set up a slide on the stage of a microscope. Also, the onion root tip should be viewed above the absolute bottom of the tip. Also, a thorough understanding of the following terms is crucial to understand the procedure and altogether purpose of the lab:   Interphase - The cell is engaged in metabolic activity and performing its duty as part of a tissue. The  DNA duplicates during interphase to prepare for mitosis (the next four phases that lead up to and  include nuclear division). Chromosomes are not clearly discerned in the nucleus, although a dark  spot called the nucleolus may be visible.                                     Prophase     -   Chromatin in the nucleus begins to condense and becomes visible in the light  microscope as chromosomes. The nuclear membrane dissolves, marking the beginning of  prometaphase. Proteins attach to the centromeres creating the kinetochores. Microtubules attach at  the kinetochores and the chromosomes begin moving               Metaphase - Spindle fibers align the chromosomes along the middle of the cell nucleus. This line is  referred to as the metaphase plate. This organization helps to ensure that in the next phase, when the chromosomes are separated, each new nucleus will receive one copy of each chromosome Anaphase     -
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