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cloning and stem cell research essay
cloning and stem cell research essay
cloning pros and cons essay
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Cloning is a DNA sequence, such as a gene, that is transferred from one organism to another and replicated by genetic engineering techniques. This means to reproduce or propagate asexually and some sexually. Cloning is made when you have several embryos and you try to duplicate them to produce more eggs which is called SCNT. SCNT (Somatic Cell Nuclear Transfer) is used so that they can take a piece of DNA from an egg and transfer it to another egg after the nucleus has been eliminated by an ultra violet beam. This technique is really hard to accomplish but can be done by well experienced scientists. There are many reasons why scientist would like to clone, and two of the main reasons are finding a cure to certain types of diseases and helping the endangered species come back to life like they once were.
Different Types of Cloning
When we speak of cloning, we typically think of organism cloning, but there are actually three different types of cloning. Molecular, Organism, and Therapeutic cloning. The first one is Molecular cloning, this focuses on when a DNA from an organism is transferred to a self-replicating genetic element such as a bacterial plasmid. In other words, a small piece of the DNA strand is removed and united with a plasmid which reproduces itself to create multiple copies of the same DNA code. This type of cloning is also called gene cloning. The second one is Organism cloning, and this involves making an identical copy of an entire organism and a good example would be Dolly the sheep. This type of cloning is also called reproductive cloning. The last one is Therapeutic cloning. This involves the cloning of human embryos for the production of stem cells. The purpose of therapeutic cloning is to extract the stem ...
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... dolly the sheep was a success because they could see that Dolly’s face was clearly a whiteface poll Dorset and not a Scottish blackface. She was cloned at the Roslin Institute in Scotland and lived there from her birth in 1996 until her death in 2003 when she was six. She was born on July 5, 1996 but not announced to the world until February 22, 1997. Her stuffed remains were placed at Edinburgh's Royal Museum, part of the National Museums of Scotland. Ever since Dolly the sheep, there has been so many other mammals cloned like frogs, which are said to be the easiest to clone.
Works Cited
www.methodsofhealing.com/the-advantages-and-disadvantages-of-cloning/
www.theguardian.com/science/2013/may/18/human-cloning-heart-disease-genes
www.religionnewsblog.com/5697/what-is-cloning-and-how-does-it-work
Animal Cloning by Joseph Panno
Cloning by Nancy Harris
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, upon first hearing the word cloning, the thought of Dolly the sheep pops into the mind. The first and most used type of cloning though is not the type that creates animals, but rather DNA cloning. “Cloning is an umbrella term that science uses to indicate the duplication of biological material.”(Human Genome Project) Cloning is further broken down into three categories. The first is DNA cloning, which is the replication of DNA strands. DNA cloning is usually the process of getting a cell to replicate a desired gene for us. DNA cloning has been used since the 1970’s and has persisted as an effective cheap means of replicating DNA of interest in a foreign host cell. “To "clone a gene," a DNA fragment containing the gene of interest is isolated from chromosomal DNA using restriction enzymes and then united with a plasmid that has been cut with the same restriction enzymes.”(Human Genome Project) Plasmids are not part of the chromosome but they replicate along with the cell when it replicates and divides. Since they are not a part of the chromosome they are easier to isolate and manipulate without affecting the cells function. “When the f...
Cloning is a real process that scientists use today to reproduce an exact living copy of DNA from the DNA of another living organism. When the idea of cloning first came about in the early 1800’s people believed it to be more science fiction than actual science. People didn’t understand the concept of cloning and therefore was naturally scared of the subject. It is best understood by how the Department of Animal Sciences at Cornell University explains it, “Cloning is a method of producing two or more genetically identical organisms by asexual reproduction. This means that there is only one parent cell, from which all the genetic information will come. Thus, the DNA sequence of cloned organisms is exactly the same as that of the parent cell.” Despite the general population’s disbelief there have been major scientific advances in the cloning process in the last fifty years. After many years of trial and error the first successful clone was created.
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...
First, what exactly is cloning? In biology, cloning is used in two contexts: cloning a gene, or cloning an organism. Cloning is the reproduction of a human or animal whose genetic substance is identical to an existing being, such as an embryo or fetus. This is reproductive. Cloning a gene means to extract a gene from one organism and insert it into a second organism. Cloning an organism means to create a new organism with the same genetic information as an existing one. This is therapeutic.
Cloning is a process that creates exact genetic copies of an existing cell.Cloning is a more general term that describes a number of different processes that can be used to produce genetically identical copies. The process of cloning can happen either naturally, for instance, when identical twins develop or it can be induced through synthetic conditions in a laboratory. There are three different types of artificial cloning: gene cloning, reproductive cloning and therapeutic cloning.
Throughout time, human and animal cloning has developed into a new important technology in everyday lives without always knowing it. Cloning is the process of copying or duplicating an organism. Human and animal cloning has so many different outcomes and uncertainties. It can be used for many different purposes, depending on what someone wants to use it for. People all around the world have different views on cloning. Some are against it and some are for it. However, not everyone fully understands how cloning works. Human and animal cloning will determine our future. It can improve or maybe even destroy mankind. Cloning is very important to the world because it can lead to new developments later on in the world that have not yet been thought of.
To create a clone is to create identical copy. This imprecise definition can be tied to a number of creatures and processes in biology, those including, mono zygote (identical) twins (when one fertilized egg splits into two embryos in the first week of fertilization) , horticulture (a section of plant being implanted in a different place to create a decedent of the original plant) , and parthenogenesis (the method of asexual reproduction by females.) The creatures and processes listed above all fall under the category clones and cloning, but the difference between these and the clones and cloning processes normally referenced in, for example, science fiction, is where they occur. The examples listed are naturally occurring clones and cloning techniques, regarded as biology clones, whereas the other type of clones and cloning occurs artificially or in laborites. This genre of cloning is cloning in biotechnology. This cloning specifically refers to three established techniques: reproductive cloning, therapeutic cloning, and gene cloning. From observing the biological, naturally occurring cloning, scientists were able to create methods for created clones that are created in the laboratory intentionally. Although clones created through biotechnology are commonly associated with fantasy and science fiction, cloning animals with biotechnology is no fiction. There are even examples of animals being somewhat successfully cloned by scientists such as the lionized Dolly the Sheep. This type of technology even has the potential to clone humans, or extinct animals. Even though scientist have advanced technology and knowledge on cloning, the topic of whether or not this technology should be used is controversial. Despite the controversy and p...
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.
To begin with, cloning is the process of producing genetically identical individuals. Plants and animals has been a frequent
The definition of cloning on google.com is “propagate (an organism or cell) as a clone” which is right. Making a clone typically isn’t reproducing another exact replica. The only thing that may be the same about the clone and the original is the DNA that the original obtains. The clone might look different and act different. For example, when two cats were cloned the clone of the original was different than the other. Different temperaments, Different Appearance Etc. But the only thing the same about them was that their DNA was the same. The process of cloning first takes place when the nucleus of the donor egg is then removed with the empty egg, the clone source DNA is injected into the donor’s egg. Next the egg rapidly divides, repeating this process over and over into a multicellular clump. Next cells start to become a group and eventually form a specific organ such as heart, liver, and kidney. Stem cells are harvested from the embryos of 100 cells or more and finally the embryos continue to grow in size and in complexity resulting in an identical replica in genes of the original.
Cloning is a process by which genetically equal organisms are created with the same DNA. In simplest terms, clones are like twins born at different times. This procedure poses various dangers to society and humankind. One of the greatest threats this procedure creates is among
Human cloning refers to the creation of a genetically identical copy of humans. This is done by copying the cells and tissue of humans using different cloning techniques discovered and developed over the last 130 years.
An Analysis on the Future Cloning Cloning has been going on in the natural world for thousands of years. A clone is simply one living thing made from another, leading to two organisms with the same set of genes. In that sense, identical twins are clones, because they have identical DNA. Sometimes, plants are self-pollinated, producing seeds and eventually more plants with the same genetic code.