Mit_Mei_lab.docx - Mitosis and Meiosi Virtual Lab Observing Mitosis A Virtual Lab(6 pts http/bio.rutgers.edu/~gb101/lab2_mitosis/section2_frames.html 1

Mit_Mei_lab.docx - Mitosis and Meiosi Virtual Lab Observing...

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Mitosis and Meiosi Virtual Lab Observing Mitosis: A Virtual Lab (6 pts) 1. Go to the above site. This will be your time to practice recognizing the phases of mitosis in both plant and animal cells. During this section the correct answers will be provided for you so you can make sure you are on the right track. 2. Follow the steps outlined on the site. Complete the plant cell (onion root tip) recognition first AND the animal cell (white fish) second. After clicking on a cell, decide which phase of mitosis that cell is in. If you are not correct the first time, try again. 3. Label the following pictures of cells with the correct phase of the cell cycle. State the characteristic(s) of the phase that you are using to decide this. Observing Mitosis: A Virtual Lab #2 (7 pts) Click on Mitosis, Click on “Step-Through” and answer the following questions. 1. When does DNA replication take place? _______ _Interphase ______________________________ 2. Centrosomes are important for _____ chromosome movement during mitosis. Prometaphasediscrete chromosomes are visible and consist of two aligned sister chromatids G2 of InterphaseChromosomes duplicated by S phase, cannot be seen individually because they have not yet condensed Prophasechromosomes are condensing and nucleolus is beginning to disappearoiuhi MetaphaseThe chromosomes are all at the metaphase plate, the plate that is equidistant between the spindles two poles Telophase Cytokinesis has started, the cell plate is growing towards the perimeter of parent cell in order to divide the cytoplasm into two. Anaphase - Separation of the chromatids of each chromosome. Daughter chromosomes moving to the ends of the cell. The cell elongates as the nonkinetochore microtubules lengthenAnaphase Seperation of the chromatids of each chromosome. Daughter chromosomes moving to the ends of the cell. Anaphase Seperation of the chromatids of each chromosome. Daughter chromosomes moving to the ends of the cell.
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3. What happens in prophase? __ Chromatin coils and condenses resulting in compacted chromosomes visible with a light microscope ______________________________________________________________________________. 4. What happens in prometaphase? ________ The nuclear envelope breaks down and microtubules emanating from the centrosomes attach to the chromosomes _________________________________________________________________. 5. Microtubules attach to __ __ kinetochores _, which are found in the _____ centromeres __________________ of the _c hromosomes _________.
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