Video Reflection We believe our video was a good model to represent mitosis, meiosis, and fertilization in the cell. However like all models, there were some points of error in our video. Mainly we misread the script and used the wrong vocabulary in some parts of the video (even though it is correctly stated in our script.) To attempt to fix this, Allan added the corrections in the description box of the video, as well as the statement “all models are wrong, but some are useful.” Our two mistakes were at 1:52 where we called “centrosomes” (correct word) centromere on accident. Our other mistake was at 5:28 where it should be “from mitosis” instead of what we said, which was “from meiosis.” We also failed to explain what synthesis is, even though we mentioned the term. Synthesis in the cell cycle is a part of the interphase step. In synthesis, the DNA replicates. It is important that this is accurate to prevent any genetic abnormalities. We could’ve represented this in our video using a piece of thin candy up close, and creating a mirror image of it to represent the DNA replication. Another point in our video where we could’ve been more thorough is meiosis ll. Although we did give a good explanation of what meiosis is, and what meiosis l consists of, we could’ve explained meiosis ll more, rather than mentioning the phases and showing the two cells splitting into four. I believe the pictures we showed in our video were a strong suit because it emphasized our explanations of certain processes that play apart in mitosis and meiosis (which couldn’t have been accomplished with candy.) However, I think we may have relied too heavily on certain pictures to convey our points, especially with meiosis ll. Meiosis ll begins with two haploid cells and produces four in the end. The steps are similar to mitosis. In Prophase ll spindle fibers form and attach to centromeres. In Metaphase ll, the chromosomes align in the middle of the cell in preparation of the centromeres dividing. In Anaphase ll, the chromosomes divide at the centromere and the chromatids move towards opposite sides of the cell. In Telophase ll, four nuclei begin to appear. In cytokinesis, the cytoplasm divides and four haploid cells are produced. Due to crossovers in the chromosomes, these cells are different from each other. Lastly, we should’ve showed a representation of fertilization using candy, rather than just showing pictures of what happens during fertilization. We did this partly because we were under the assumption that the video should be more heavily focused on mitosis and meiosis, rather than meiosis and fertilization. That being said, we gave a very detailed explanation of mitosis, and didn’t include a candy model of fertilization. Besides these points, I believe our video was fairly accurate and creatively done with the use of candy to design the processes of the cell cycles. Works Cited:
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ABOUTHere are updates from my Genomics class.
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