At an early growth stage when colonies consist of only a few of cells, sterile polystyrene rings (cloning rings), which have been dipped in grease are placed over an individual colony and a small amount of trypsin is added. Cloned cells are collected from inside the ring and transferred to a new vessel for further growth. What is cloning? Cloning is a process carried out in a laboratory by which a genetically identical organism can be made through non-sexual means. How it started? In February 1997, when embryologist Ian Wilmut and his colleagues at Roslin Institute in Scotland were able to clone a lamb, named Dolly. Who are cloned? Both plants and animals can be cloned. Plant Cloning is an ancient form of producing desired outcomes in plant species. Animal Cloning is the process by which an entire organism is reproduced from a single cell taken from the parent organism and in a genetically identical manner. This simply means the cloned animal is an exact duplicate in every way of its parent; it has the same and exact DNA. What does it involve? For different purposes there exist different extents of cloning such a molecular cloning; the process of making multiple molecules, Cellular cloning, which can be further divided into unicellular cloning; in which you derive a population of cells from a single cell, and Cloning in stem cell research; used to create embryos for research or therapeutic purposes example of nature essay, and the most complex type of cloning is organism cloning; it refers to the procedure of creating a new multicellular organism, genetically identical to another. Is cloning advantageous or disadvantageous? Cloning has both advantages and disadvantages to human beings. Advantages may include the creation of human beings that can be used to study human development and to potentially treat diseases. Disadvantages may include the lack of diversity of organisms and the hindrance of evolution. Why clone, and why not to clone? The ethics of cloning has become a great issue. Scientifically speaking themes and essays, cloning can be the solution to problems associated with organ transplants that can benefit human health, and can also help in great yield production of healthy crops. But ielts essay writing tips, ethically speaking the bible states that a new individual should be born from a husband (which provides the sperm) and a wife (which provides the egg), therefore by cloning one will blunder the world of God for it involves asexual reproduction of organisms. Cloning has indeed been the subject of scientific experiments for years but it was first known to be successful in 1997 when, after about 277 eggs used, the first cloned mammal 'Dolly' was born. In the United States, the human consumption of meat and other products from cloned animals was approved by the FDA on December 28, 2006 essays bacon, with no special labeling required. Changes in genomes may not only result in changes in appearance insurance essay, but in psychological and personality changes as well. Unicellular Cloning of organisms is performed using a culture technique which involves the use of cloning rings. In this technique: The nucleus can then be inserted into an egg cytoplasm. This creates a one-cell embryo. Organism Cloning the procedure of creating a new multicellular organism, genetically identical to another is achieved by: In amphibians the ultimate test of whether the nucleus of a differentiated cell has undergone any irreversible functional restriction is to have that nucleus generate every other type of differentiated cell in the body. If each cell's nucleus is identical to the zygote nucleus, then each cell's nucleus should be totipotent (capable of directing the entire development of the organism) when transplanted into an activated enucleated egg. Before such an experiment could be done, three techniques for transplanting nuclei into eggs had to be perfected: a method for enucleating host eggs without destroying them; a method for isolating intact donor nuclei; and a method for transferring such nuclei into the host egg without damaging either the nucleus or the oocyte. Trim a piece of the root from a plant. Although most scientists consider the process of animal cloning as a major breakthrough and see many beneficial possibilities in it, many people are uncomfortable with the idea, they say it is 'against nature' and it is ethically damning, particularly in the instance of cloning human beings. Animals: Molecular Cloning which is the cloning of any DNA fragment can be divided into the following different steps: The transfer of a nucleus from a donor adult cell (somatic cell) to an egg that has no nucleus. Other Potential Medical Benefits of cloning include: the possibility that we will learn to renew activity of damaged cells by growing new cells and replacing them, the creation of humans with identical genetic makeup to act as organ donors for each other, cloning allows the study of cell differentiation, and cloning also gives sterile couples the ability to have offspring that will have either the mother's or father's genetic pattern. Fragmentation - breaking apart a strand of DNA Screening/Selection - selecting out the cells that were successfully transfected with the new DNA. The resulting growth will be identical to the original plant. Pros of Human Cloning EssayPlant.com professional writers can assist you in preparation of your Medicine and Biology Essays. Their writing experience allows them to grasp the topic and quickly develop a successful research paper. Do not procrastinate, order Custom Biology or Medicine Paper now! Now it is necessary to refute pros of cloning wit the overwhelming cons. The "Dolly", showed that cloning would result in a high number of miscarriages and deaths among newborns. A clone could also change family dynamics in profound and unpredictable ways. The National Bioethics Advisory Commission: "While using animals to understand the biological processes that produced "Dolly" holds great promise for future medical advances, there is no current scientific justification for attempting to produce a human child at this time with this technique" (McGee multiple choice test, 83). In other words research paper in english, there is no guarantee that the cloned human will live and not die or experience miscarriages and deaths among its own offspring in the future. Give reasons for your answer and include any relevant examples from your own experience or knowledge. Write at least 250 words. As people live longer and longer, the idea of cloning human beings in order to provide spare parts is becoming a reality. The idea horrifies most people, yet it is no longer mere science fiction. As people live longer and longer english writing paper help, the idea of cloning human beings in order to provide spare parts is becoming a reality. The idea horrifies most people, yet it is no longer mere science fiction. However, for good reasons, many people view this as a worrying development. Firstly, there are religious arguments against it. It would involve creating another human and then eventually killing it in order to use its organs cover letters teachers examples, which it could be argued is murder. This is obviously a sin according to religious texts. Also, dilemmas would arise over what rights these people have assignment of land, as surely they would be humans just like the rest of us. Furthermore, if we have the ability to clone humans, it has to be questioned where this cloning will end. Is it then acceptable for people to start cloning relatives or family members who have died? The cloning of animals has been occurring for a number of years now, and this has now opened up the possibility of cloning humans too. However, for good reasons, many people view this as a worrying development. The candidate demonstrates that they can use a mix of complex structures. For example: So the best way to answer this human cloning essay is probably to look at both sides of the issue as has been done in the model answer. Also we cannot be sure if cloning technology will be used in favor of people. What if this technology falls in the hands of people with evil intentions? Then an example of a critical evaluation essay, it will be a threat for all of us. There is no way to know the exact intentions of the scientists or the people who want to clone human beings. And as long as we cannot be sure about people’s real thoughts, we cannot claim that human cloning is always in favor of people.
0 Comments
Leave a Reply. |
ArchivesCategories |