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For decades, cloning was merely a topic mentioned in the text of science fiction novels. It was simply a fictitious fantasy that proved to only be for entertainment purposes. However, while all those novels and films were being produced, a multitude of scientists attempted to make what society thought of as a dream, into a reality. The science of cloning is the process of making genetic duplicate of an organism. The scientific history of cloning spans more than 100 years dating back to 1885, and still going strong today. In general, there are two main purposes for cloning: therapeutic or reproductive. Reproductive cloning is performed with the intent of making a complete organism. Therapeutic cloning is performed to harvest stem cells for use in medical treatment, such as cloning organs for transplant. There are benefits and consequences for each process that have sparked ethical and scientific debate over the years. With the help of advancements in technology in the future, cloning can provide medical breakthroughs.
The process of cloning has existed for decades. Plants have been cloned for years now, although, cloning was never recognized until February 22, 1997 when the first mammal (Dolly the Sheep) was cloned from an adult cell (“Cloning Dolly The Sheep”). Dolly was named after Dolly Parton, the mammary cell that was cloned after giving birth at the Roslin Institute. The cloning of Dolly sparked much discussion and debate that has stuck around today. Dolly was the first successful reproductive clone. What first started out as the first ever demonstration of artificial embryo in 1885 quickly transformed into the success of cloning animals such as sheep, cows, and mice (“The History of Cloning”). With the help of decades of me...
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"Latest Facts & Figures Report | Alzheimer's Association." Latest Facts & Figures Report | Alzheimer's Association. Alzheimers Association, n.d. Web. 14 Apr. 2014. .
"Who Is Affected by Parkinson's Disease." WebMD. WebMD, 03 Dec. 2010. Web. 14 Apr. 2014. .
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How To Make A Clone. Digital image. Biology - Clones. Makewav.es, 22 Aug. 2012. Web. 15 Apr. 2014. .
The Cloning Process of "Dolly the Sheep" Digital image. Cloning Methods in Animals. N.p., n.d. Web. 14 Apr. 2014. .
Understanding the facts as well as procedures between the many different types of cloning is very crucial. When everything boils down there are three types of cloning known as DNA cloning, therapeutic cloning and reproductive cloning. DNA cloning is the copying of a gene in order to transfer it into another organism which is usually used by farmers in most of their crops. Therapeutic cloning is the use of stem cells used to help take the place of whatever cell is missing which is potentially used to help the ill. Stem cells contain the potential to grow and help replace the genes that are missing in order to fix whatever is genetically wrong with your body or any genes that you may be missing. Reproductive cloning actually produces a living animal from only one parent. The endless possibilities and perhaps hidden motives of using genetic engineering are what divide as well as destroy the scientific community’s hope for passing laws that are towards pro cloning. Many people within soci...
Cloning has been in nature for thousands of years, a clone is a living thing made from another consisting of the same DNA. For example identical twins are clones because they have the same DNA but the differ because the twins begin after conception when a zygote, a totipotent stem cell, divides into two, some plants self-pollinate and produce a seed, which in turn, makes plants with the same genetic code (Hyde). According to the Human Genome Project there are three types of cloning, DNA, therapeutic and reproductive; DNA cloning involves transferring DNA from a donor to another organism, therapeutic cloning, known as embryo cloning, involves harvesting stem cells from human embryos to grow new organs for transplant, and last is reproductive cloning which creates a copy of the host (Conger). One of the earliest cloned animals was a sea urchin by Hans Dreisch in the late 1800’s. Unlike Victor Frankenstein, Dreisch’s goal was to prove that genetic material is not lost in cell division, not to create another being, (History of Cloning) stated by Frankenstein “that I might infuse a spark of being into the lifeless thing that lay at my feet.” There are many ways an animal...
Through the process mentioned above there has been an increase in the methods in which DNA, Reproductive and Therapeutic cloning and the processes that happen in order for cloning to occur. DNA Cloning occurs when the DNA cell is replicated, an organisms DNA is taken and placed in a Vector also known as plasmid. This self-replicating cell will then create copies of the DNA code. After being placed into a foreign host cell that is suitable for the DNA the cell will then reproduced. Reproductive cloning in some aspects of the developing stages is similar but is still completely different. Reproductive cloning is the type of cloning that has successfully created the most famous clone to live. Dolly the sheep is famous as she was the first mammal to be successfully cloned from an adult cell. In 1996 Dolly was born. Reproductive cloning uses the process of somatic cell nuclear transfer shown in figure 1 below where the nucleus from an adult cell is taken and placed into a cell which has had its nucleus removed. Scientist use electrical currents or chemicals to stimulate the cell division process to begin and the embryo is then placed in a surrogate womb where it will stay till it i...
Cloning, especially human cloning attracts increasingly more attention after the first mammal cloning animal Dolly born in 1997. Cloning is divided into two categories: therapeutic cloning and reproductive cloning. Therapeutic cloning is more related to tissue level cloning to transplant healthy cells and reproductive cloning is individual level cloning. Thus, the term cloning in this essay is used to describe both individual level and tissue level cloning. Public have different views. Some people support it because of its medical value, yet some people argue that it may bring many safety risks and moral problems. Hence, decisions ought to be made to identify the extent of cloning. Therefore, this essay introduces two major benefits of human cloning on disease therapy and analysis two arguments against it on safety and ethical issues.
Cloning is a procedure of creating genetically indistinguishable organisms through nonsexual means (Devolder 2008). After years of countless research and experimenting, scientists successfully cloned their first mammal using a technique called somatic cell nuclear transfer (SCNT). In Devolder’s paper she states, “Somatic cells are any cells other than the reproductive system cells” (Devolder 2008). Scientists realized they could take fully developed somatic cells from any part of the body and, through the SCNT system, use the cells to make a genetic copy of the cell. This growth in cell research is binding scientists in a race to establish their findings so they could be the first in the finish line. This pressure to be renowned has driven scientists to attempt to control the very natural process of life. Our world is plagued by disease, an increase in population and poverty with limited resources to satisfy the basic needs of mankind, so cloning is often regarded as the solution. Cloning for reproduction and therapy has improved drastically displaying a lot of potential uses but is vastly outweighed with larger risks.
The concept of cloning has been around since the 1800’s, although, in the field of scientists, it has slowly been evolving into a vigorously debated topic, throughout the last 3 decades. Cloning is essentially defined as the process of artificially reproducing genetically identical organisms. Scientists all around the world, through research, are still learning more about the topic, but the fascinating process officially gained awareness as a result of a 1986 experiment conducted by Ian Wilmut, scientist at the Roslin Institute in Scotland. The project was essentially centred around a sheep referred to as “Dolly” that was cloned in a lab using a frozen mammary cell from another adult sheep. At the time, this was a significant milestone in the field, as all cloning up to this point had been done using embryos, and never actual adult cells. The Dolly experiment served as a catalyst for additional intensive research, which consequently resulted in a myriad of new benefits and uses for cloning. From that point on, we have made many advancements, and currently, in our modern day society, scientists are more capable of putting their research into practice, with the assistance of the constant improvements in technology. The method of cloning has already been implemented as a solution to infertility, and plants and animals can be cloned for the purpose of creating new possible food alternatives. The main benefit of cloning revolves around health, as lives can be saved or prolonged, thanks to a theoretically simple process known as organ transplantation, where for example, the parts from a cloned pig can be used to replace those malfunctioning, in a human. If scientists keep doing research on the topic at the current rate, and conducting e...
This is explained by Craig Freudenrich. He discusses this on the website HowStuffWorks. Freudenrich tells of how Ian Wilmut and his colleagues successfully cloned Dolly the sheep at the Roslin Institute in Midlothian, Scotland. Dolly the sheep was the world's first successfully cloned mammal, cloned from an adult somatic cell. He writes how after Dolly, scientist have been cloning animals like cows and mice. “They rely on transplanting the genetic information from a specialized cell into an unfertilized egg cell, whose genetic information has been destroyed or physically removed.” (How Cloning Works) This information is very enlightening to anyone who questions how cloning works. Furthermore it secures the information needed to inform the general public of what they need to know to have a responsible and appropriate
In recent decades, questions about genetic engineering, genetic modification, and cloning of animals and humans are on the minds of many. On February 27, 1997 when Dr. Ian Wilmut and his team sent chills down our spine with the announcement of the first successfully cloned sheep Dolly. At this time the reality of animal cloning stared us in the face while the human cloning was just around the corner.
Cloning is, and always has been an extremely contentious topic. To some, the ethical complications surrounding it, are far more promiscuous than what scientists and medical experts currently acknowledge. Cloning is a general term that refers to the process in which an organism, or discrete cells and genes, undergo genetic duplication, in order to produce an identical copy of the original biological matter. There are two main types of artificial cloning; reproductive and therapeutic, both of which present their respective benefits and constraints. This essay aims to discuss the various differences between the two processes, as well as the ethical issues associated with it.
Even though cloning methods have been in use for an extended period of time, the idea of a clone was never thought to be realistic until recently. For thousands of years, humans have been cloning plants through asexual propagation. This is simply the process of stem cutting or grafting a mammal was performed in Switzerland nearly 20 years after the carrot plant where mice cells were cloned. Later, in 1997, Dolly the sheep’s mammary cells were cloned (Lee). This was a major success for science because it was the first time an adult cell was used in which results in a clone of the previous generation of the plant and is still a method used today. It wasn’t until 1958 when modern cloning began with a carrot and in 1964 when scientist John Gurdon started the beginning of animal cell cloning of toad tadpoles. The first successful clone of embryonic cell. After scientists gained a greater knowledge of the process of cloning, they realized that it could possibly be used to benefit the world. In 2001, the first endangered species, the bull gaur, was cloned, and in...
Human and animal cloning traces back to a long time in history. There has been many changes and improvements throughout the times. For example, cloning had started with smaller, easier subjects to work with. Researchers have found that "cloning of plants (such as growing a plant from a cutting) has been a common practice of mankind for hundreds and perhaps thousands of years" ("History of Cloning"). In earlier times, many scientists used plants to practice on and perfect before moving on. After they had perfected this, than they would move on to more complicated subjects. In addition, animals became the next experiments for the science of cloning. " Even cloning of small animals has a long history dated back to the 1960s; human cloning had not been thought possible until the successful cloning of the first mammal, Dolly the Sheep, in 1997" ("History of Cloning"). Dolly the Sheep helped scientists be convinced that ...
...the scientists creating dolly starved the donor sheep’s cells to make sure they were inactive. The scientists then committed somatic cell nuclear transfer and took the inactive donor cells and fused them with an egg without a nucleus from a different bread of sheep. Then, continuing to use the reproductive cloning procedure, the scientist implanted the egg into a third breed of sheep’s uterus. When Dolly came to full term and was born, the scientist immediately recognized that the lamb looked very similar to the breed of the sheep who donated the DNA, and nothing like the sheep who donated the egg or gave birth to the lamb. Later on, DNA tests confirmed that indeed, Dolly was an exact clone of the DNA donor. On April 13, 1998 Dolly gave birth to a healthy lamb, proving her health to be standard. She would eventually have two more pregnancies and have five more lambs.
Human cloning is the process to produce a duplicate of a human being. It is the exact genetic copy and every single bit of their DNA is identical. If successful, cloning can have a lot of positive technological advancements that would help humanity. Possible benefits would be; replace love ones that have passed away, reproduce humans with special abilities and high intelligence such as Einstein and, regenerative medicine. Regenerative medicine is the process that would allow cloned organs to be used to replace human’s damaged organs. Splendid as it sounds, not one clone, human nor animal has risen to the challenge without complication whatsoever. As a fairy tale, cloning sounds too good to be true and the failure rate is tremendous. “Your success cannot be 1 or 2 percent. A 2 percent success rate is not ...
been made possible but yet a majority of them have died in early stages of development or after birth according to the study of the cloned sheep, Dolly (Magalhães 1). Those who make it suffer from several defects acquired from birth (Magalhães 1). During recent experimentation it took scientist Ian Wilmut of the Roslin Institute in Edinburgh, Scotland, and his colleagues who created Dolly (a cloned sheep) 277 tries before they got a healthy, feasible lamb (Human Cloning 1). Due to the complication of human cloning even more deaths and deadly birth defects can be expected (Human Cloning 1). Even though human cloning has never been performed, one likely possibility is that babies born through this process will as well feature lethal birth defects (Magalhães 1).
Recent discoveries involving cloning have sparked ideas of cloning an entire human body (ProQuest Staff). Cloning is “the production of an organism with genetic material identical to that of another organism” (Seidel). Therapeutic cloning is used to repair the body when something isn’t working right, and it involves the production of new cells from a somatic cell (Aldridge). Reproductive cloning involves letting a created embryo develop without interference (Aldridge). Stem cells, if isolated, will continue to divide infinitely (Belval 6). Thoughts of cloning date back to the beginning of the twentieth century (ProQuest Staff). In 1938, a man decided that something more complex than a salamander should be cloned (ProQuest Staff). A sheep named Dolly was cloned from an udder cell in 1997, and this proved that human cloning may be possible (Aldridge). In 1998, two separate organizations decl...