Cell Biology Meiosis and Mitosis - 1435 Words

Cell Biology (CP8121) Experiment 2: Observing Mitosis and Meiosis on cell specimens (Formal report) Name: Wong Chung An Class: DMLS/FT/1B/02 Admin number: P1138687 Summary This experiment aims to observe mitosis and meiosis on cell specimens. It involves the modelling of the stages of meiosis and also the staining procedures to identify mitosis in onion root tip. There are two parts to the procedure of the experiment whereby the first is staining and observing mitosis in onion root tips and the second being observing and comparing mitosis between whitefish blastula and onion root tip. The results are that the five stages of mitosis have been observed and sketched, together with a comparison of telophase in plant and animal cells. The†¦show more content†¦2) This time, instead of sketching the different phases of mitosis in onion root tip, the differences in mitosis between the plant and animal cells were recorded. 4) Results and Discussion *For the results, refer to the datasheet archived under appendix at the end of the report. 5.1 Explanation and reasons for results The results of the datasheet have shown that all the five main phases of mitosis can be observed. This can because of several reasons such as the choice of use of onion root tips, flattening of the onion root tips, addition of hydrochloric acid and 0.5% Toluidine Blue solution. Onion root tips are easy to grow in large numbers and the cells at its tips are actively dividing, thus many of its cells will be in different stages of mitosis. The reason for using the last 1-3mm of the root tip is because it is where the region of cell division (meristem) is located. This is the region whereby cells are dividing but not significantly increasing in size. The flattening of the onion root tips allows the chromosomes of each individual cell to be observed. The hydrochloric acid added, plays a part in fragmenting the root tissues by weakening and removing the bonds between cells so that each cell will not be attached to the other cell, obstructing the observation. Toluidine Blue solution acts as a colorant, giving a blue colour to the chromosomes and so that it is more easily spottedShow MoreRelatedProcess Of Dividing Body Cells And Their Nuclei Essay1268 Words   |  6 PagesYahya Bello Homework 1 Mitosis: can be defined as the process of dividing body cells and their nuclei. The body continually produced new cells by splitting from the ones that has already existed. Meiosis: can be defined as a particular form of cell splitting that generates reproductive cells, such as sperm and egg cells, plant and fungal spores. Steps involves in Mitosis Mitosis consists of four basic phases and they include prophase, metaphase, anaphase, and telophase. Figure 1 shows theRead MoreMeiosis and Mitosis Essay example752 Words   |  4 PagesMitosis and meiosis are the means by which reproduction takes place. Mitosis creates an exact duplicate of cell so that old cells can be replaced, such as in skin, hair, and bones. Meiosis allows a cell to unite one half of its genetic makeup with a cell from another partner to create an entirely new organism. Mitosis Mitosis is the process by which two daughter cells are formed, each containing a complete set of chromosomes. Mitosis is the process by which an organism creates new cells, suchRead MoreFunctions Of Mitosis And Meiosis1708 Words   |  7 PagesTopic Cells (A.C. 3.1) Mitosis and meiosis are both forms of the nucleus in eukaryotic cells and share some similarities, but also exhibit distinct differences that lead to very different outcomes (UK essays 2013; widmaier et al, 2014; Toole, 2015; Khan, 2016). 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