• Digestive System
    easily. The super coiled chromosomes during different stages of mitosis present in the onion root tip cells can be visualized by treating with DNA specific stains like Feulgen stain and Acetocarmine stain. Mitosis in Onion root tip    Mitotic Index   The percentage of cells undergoing mitosis or...
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  • Akshu
    : Volume of tested sample: Temperature: Exposition length: Illumination: Chemicals: Instruments and equipment: 5.2. Onion (Allium cepa) Micronuclei in interphase and chromosomal aberrations in anaphasetelophase root tip cells Stable temperature and light cycle 16 h/8 h (light/dark) 6 plants...
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  • Mitosis Write-Up
    is used for studying tumour growth in cancer patients. Using the formula below, calculate the mitotic index for your root tip preparation. If you have time, compare this value with the mitotic index of an area of cells away from the root tip and comment on your findings. e.g. Mitotic Index = number...
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  • Cytotoxic and Genotoxic Effects of Gutkha Using Allium Cepa Assay
    root tip cells, IOSR Journal of Pharmacy and Biological Sciences, 4: 17-22. And Springbok to onion root tip cells. African J of Biotech. 7: 4244-4250. 2. Antonsiewicz D., 1990 — Analysis of the cell cycle in the root meristem of Allium cepa under the influence of Ledakrin. Folia Histochemica et...
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  • Mitosis root tip practical
    USE OF ONION ROOT TIPS FOR MITOTIC DIVISION OBSERVATIONS Introduction The zone of cell division on the onion root tip is a great place to observe mitotic cell divisions. Through the observation and comparison of different regions of the root tip, the duration of mitotic stages and mitotic...
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  • Mitosis
    1. Also, the mitotic index of this root tip maybe very high (close to one) and so most of the cells would have undergone mitosis already. References: Regina Bailey, ‘Spindle fibres’, 2008. Regina Bailey, ‘Cell Cycle-Definition’, 2008. Unknown, ‘Duration of cell cycle’, 2007....
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  • Ap Biology Lab Report 4
    Introduction This study was performed in order to gain more knowledge on mitosis and meiosis. This lab was done by observing mitosis in plant and animal cells, comparing the relative lengths of the stages of mitosis in onion root tip cells, stimulating the stages of meiosis, observing evidence of...
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  • Lab 2 Biology
    questions about the photos below: Onion root tip photos at 600x and 1000x taken by Stan Carpenter of Hands-On Labs, Inc. 1. What phase is this cell undergoing? Telophase 2. What happens after this phase? Cytokinesis 1. The two center side-by-side cells are undergoing two different phases of...
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  • Biol
    of cell division in these specific regions of onion root tip cell act as the purpose of this experiment. The percentage of cells which undergo interphase and mitosis were calculated and ranked it based on percentage of mitotic cells and interphase cells. So, apical meristem has the highest rate of...
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  • Observing Mitosis
    stain) designed for making slide enable to observe mitotic stage of cell cycle. The tip of Garlic bulb’s root is suspected to be relevant for that, for observing the cell cycle. Aim To observe cell cycle in definite stage-in this experiment mitosis. To get knowledge of which phase is...
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  • The Amount of Time a Cell Spends in Each Stage of Mitosis
    lab manual: 1.) If your observations had not been restricted to the area of the root tip that is actively dividing, how would your results have been different? In the onion root tip, regions other than the apical (or at top of) meristem contain cells that are not actively dividing. These cells are...
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  • ap bio mitosis and meiosis
    , or a 2:4:2 pattern. DEMO #2 Materials 1. Based off of the materials, two slides are already prepared and provided for us to examine. The first is the slide with cells of the onion root tip, while the second shows the Whitefish Blastula cells! We will be using these slides to compare both. 2. Set...
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  • Ap Lab 3: Mitosis and Meiosis
    field of the onion root tip. Most of the cells were in interphase; therefore, interphase is the longest stage. The next largest group was prophase, indicating this phase is the second longest. The three remaining were close in number but varied which indicated that all those stages happen quickly. The...
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  • Cell Biology Meiosis and Mitosis
    , I would recommend that the mitotic spindles of the onion root tip cells be stained as well. This would allow a more in depth observation of mitosis and instead of solely looking at the movement of the chromosomes and the nucleus, we could observe the reason behind the movement of the chromosomes...
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  • Lab Report 5
    into two phases interphase and mitotic phase. The time spent in these phases depends upon the type of cell and its particular developmental or physiological state. Cells comprising rapidly growing tissues, like those in the root tip of a plant spend a comparatively long time in the mitotic phase...
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  • Mitosis and Meiosis Experiment
    blastula is used to study cell division. The egg is fertilized, then it begins to divide and nuclear division after nuclear division follows. The cell cycle is approximately 24 hours for cells in activity dividing onion root tips. The relative length of time that a cell spends in the various stages of...
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  • Using Garlic Root Tips to Observe Mitosis
    stage was determined. Prophase was by far the most abundantly represented stage in this portion of the onion root. The large amount of prophase cells is due to the large duration of prophase in comparison to the durations of the other mitotic stages. A cell in prophase is undergoing the...
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  • Http: //Www.Freeworldmaps.Net/Asia/South-Korea/Map.Html
    . total number of cells |Table 1. Duration of mitotic stages in onion root tip cells. | | |# of cells you...
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  • Anion Root Tip
    In the experiment, onion root tips are choosen to be observed under microscope. It is because the chromosomes are larger than most of the others plants. The root tips of onion are picked to observed as the root tips are the region where the cell division occurs mostly. The cells at the tips of the...
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  • Biology
    . Formation of an adult organism from a fertilized egg, asexual reproduction, regeneration, growth, and maintenance or repair of body parts are accomplished through mitotic cell division. Observing Mitosis in Plant and Animal Cells Using Prepared Slides of the Onion Root Tip and Whitefish Blastula Where...
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