The Cell Cycle and Cancer Worksheet - 980 Words

Virtual Lab: The Cell Cycle and Cancer Worksheet 1. In which phase of mitosis do each of the following occur: a. Centromeres split and chromosomes move toward opposite sides of the cell- Anaphase b. Chromatin coils to form visible chromosomes - Prophase c. The nuclear membrane disappears- Prophase d. Sister chromatids line up in the center of the cell- Metaphase 2. In which phases of mitosis are sister chromatids visible, and attached to each other at the centromere? Metaphase Table 1: Record your data for the number of cells in each stage of the cell cycle observed in normal tissues. Tissue Type # Cells in Interphase # Cells in Prophase # Cells in Metaphase # Cells in Anaphase # Cells in Telophase Lung Tissue†¦show more content†¦You would expect for the normal lung cells to not have to divide as often because those cells are not exposed to many things through out the day. The normal stomach cells on the other hand would be expected to divide more because there is a lot of acidity in the stomach and therefore those cells are exposed to a lot of things on a daily basis. As for the ovaries you would expect that there would be a little more cell division because that is where new life is formed and all of the things that come along with that which means that there should be more division going on. 7. This lab explores three common cancers. An additional form of cancer – Skin Cancer – used to be seen only in older individuals but is now seen in younger individuals, many in their early 20s. Skin cancer results from accumulated mutations to the DNA of skin cells, caused primarily by sun exposure. What factors do you think may be contributing to the increase in skin cancer among young adults? I think that there are multiple factors that are major contributing points to the fact that there is an increase in skin cancer among young adults. One of these factors is that teens are now so concerned with getting a great tan and being â€Å"darker† than their friends when they come back to school in the fall. This means that not only are the individuals exposed to the full effect of the sun earlier in life butShow MoreRelatedReal Time Pcr Detection Of Hiv Viral Load992 Words   |  4 Pageswhich causes more severe disease and the source of transmission is a chimpanzee species Pan troglodytes whereas HIV-2 is transmitted by Cercocebus atys, a monkey found in West Africa (Norris, 2011). HIV binds to the CD4+ T cells because it needs CD4+ receptor to penetrate into cells. The virus transcribes its RNA into cDNA and then integrates its DNA into the host DNA and replicates further. It uses the DNA of CD4+ T lymphocytes and eventually ends up destroying them (Roberts, 2008). Once it weakensRead MoreDieting Makes People Fat Essay19490 Words   |  78 Pagesinvestigated in biomedical research. 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Roger Mcgough Poem Analysi - 794 Words

Roger McGough was a well-known British poet who has written a lot of poems about inequality, life and unfairness between social classes. I have chosen to discuss and compare the following poem â€Å"The Commission†, â€Å"Nooligan† and â€Å"Streemin† of Roger McGough. The three poems I have chosen are mainly written in the area of inequality of this world and the unfairness of social class. In â€Å"The Commission† Roger McGough has written the contrast of the different social class and the difference between the wealthy and the poor. In the poem he wrote â€Å"In this poem there is a table. Groaning with food. There is also a child, Groaning for lack of food† this clearly stated out the different between the wealthy and the poor. In â€Å"Nooligan† he criticises the†¦show more content†¦From his poem â€Å"Nooligan† it teaches me that everyone should deserve happiness in this world, because to be born into this world and determined that they are going to die sooner or later was not a child’s choice, it was not their choice to be born in to a violence family, it was not their fault that the parents are devoiced. Therefore I think that everyone who was born into this world deserves to have their own happi ness and no one should have the power to take it away fromShow MoreRelatedEssay British Poetry4052 Words   |  17 Pagesat centralist values and took its own little mag, alternative route to the people. A poetry built on wild times, popular readings and independent distribution systems exploded across the UK. Led by the Liverpool poets Adrian Henri (1932- 2001), Roger McGough (1937-) and Brian Patten (1946-) on the back of the Beatles, and aided by Adrian Mitchell (1932-), Jeff Nuttall (1933-), Tom Pickard (1946-) and others, Underground poetry became verses acceptable popular face. Poetry was removing itself from

Desert Green free essay sample

I looked down, immediately closed my eyes and hung to the wall of rock with fear. Fifty feet below me, the brightly colored crash helmets of my team looked like Skittles scattered across the rocky floor. I was balancing on a seven inch ledge, 40 pounds on my back, and the only thing keeping me sane was a 10 millimeter thick rope tied around my waist. I looked behind me and my stomach rolled as I thought of the precarious boulders that I risked my life on every step of the way here. Backpacking in Death Valley for a month exposed me to a multitude of new experiences. Traversing treacherous terrain was definitely one of them. Out there I was pushed, challenged, and dared to be something bigger than myself. Death Valley stripped me of all my barriers so I could reach out uninhibited to find that larger meaning I could be truly passionate about. We will write a custom essay sample on Desert Green or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page It was the unexpected aspects of the desert –the raw beauty and the limited water– that unearthed a sense of environmental conservation in me I was able to develop and cultivate. More than anything else, the beauty of the desert inspired me to appreciate the subtle wonders of life. The first night out there, I was astonished by the brilliance of the stars. Out in the wilderness these infinitesimal winks of light were brighter and more spectacular than I had ever seen them before. I stayed up late that night, and every other night, watching them spin through space as the tips of my cheeks and nose were by the frozen wisps of air drifting through the barren desert. After that, I started to notice small beauties: the rose tint to a peach cactus’ spines, the patterns in the walls of Marble Canyon, the perpetually perfect slopes of the sand dunes. I thought of the seemingly polar opposite environment I came from and realized that we strive too often to separate the two worlds of nature and civilization whereas it is and should always be interconnected. I saw the part I had played in this herd mentality of consumption. I looked back at myself, the stranger I had been merely days before, and became aware of how self absorbed I was. My world was no larger than myself and what affected me. I never truly saw the impact I had on my environment because of the constant flow of material goods that appeared with a swipe of a credit card and disappeared with the emptying of a trash can. Camping with limited resources made evident that waste of water, space, and material goods is thoughtless of our responsibilities to our earth. Understanding that this planet is impacted negatively or positively by the things we do convinced me to become involved in conservation endeavors for the rest of my life. It is this passion for environmental sustainability that I brought back from Death Valley. In sharing my visions of permaculture design, gray water usage, and conservation of resources, I hope to influence others to action in this world of emerging e cological awareness. Hours later, I looked back at the cliff I had scaled. I saw the shades of orange and red in the rock face, a sharp contrast to the vivid blue of the sky. It was this kind of natural beauty, as treacherous as it may be, that first inspired me. Despite the blood, sweat, and tears I had shared with those rocks, I felt a greater bond with them now that they arose as the cornerstones of my lifelong goals.?