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Crispr cas 9 essay
Essay on crispr technology
Essay on crispr technology
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“UC Berkeley researchers have made a major improvement in CRISPR-Cas9 technology that achieves an unprecedented success rate of 60 percent when replacing a short stretch of DNA with another”(Antonio Carusillo, PhD Candidate in Genetic Engineering (Marie Curie) at University of Freiburg (2018-present). This statistic shows that there is more of a chance to success but there is a chance to fail 40 percent but overall it will succeed which is why people are lenient about will it actually work or not, but as technology get better so will treatments to cure hard to pinpoint disease such as cancer, zika, or leukemia. Genome editing (also called gene editing) is a group of technologies that give scientists the ability to change an organism's DNA. …show more content…
Most of the changes introduced with genome editing are limited to somatic cells, which are cells other than egg and sperm cells. These changes affect only certain tissues and are not passed from one generation to the next. However, changes made to genes in egg or sperm cells (germline cells) or in the genes of an embryo could be passed to future generations. Germline cell and embryo genome editing bring up a number of ethical challenges, including whether it would be permissible to use this technology to enhance normal human traits (such as height or intelligence). As the technology continues to get better CRISPR could be used to correct the faulty DNA that's responsible for genetic diseases like cystic fibrosis, sickle cell anemia, hemophilia and perhaps muscular dystrophy. As long as scientists can identify which mutation causes these diseases, they could, in theory, use CRISPR to find these genes, break them, and replace them with healthy …show more content…
Their CRISPR/Cas9 system involved CRISPR, a Cas protein called Cas9, and hybrid RNA that could be programmed to identify, cut, and even replace any gene sequence. By the start of 2013, research applying CRISPR/Cas9 to genetic engineering was underway.The CRISPR system is not completely reliable. It doesn't work all the time, and it occasionally causes changes in genes that weren't intended As mentioned previously, Cas9 can only recognise genetic sequences of around 20 bases long, meaning that longer sequences cannot be targeted. More significantly, the enzyme still sometimes cuts in the wrong place. Figuring out why this is will be a significant breakthrough in itself – fixing it will be even bigger. Then, of course, there’s the issue that CRISPR didn’t work terribly well in human embryos. This saying that Scientists need to discover what went wrong there, and what the difference is between the success in single cells and the more patchy results with embryos. Also that
Gene editing will also take away the uniqueness of a baby. Due to them being modified babies they will have more of an advantage over the other normal kids which will not be fair to the others. This will more than likely turn into a competition. This will cause a world class of separation causing it to be a gap in society. For example, in schools there may be certain classes in which the normal kids attend. Due to them being the normal kids they get treated as if they know little as nothing and shown very little attention. Then there will be classes in which the
It was in the 1980’s that scientist began looking at alternative ways of treatments, one is gene therapy. Scientist would insert human genes into a bacteria cell. Then the bacteria cell would transcribe and translate the information into a protein. Once that is done the scientist would then introduce the protein into human cells. Gene therapy can be simply viewed as inserting bits of foreign DNA into a patient’s tissue in hope...
Human gene therapy is a method used in the medical field that treats diseases at a molecular level, by solving the source of the problem; our genes. Today, diseases and disorders are commonly treated by solving the symptoms, the surface of the problem. Many disorders and diseases are caused by defective proteins and within those defective proteins are damaged and defective genes. These defective genes can be treated through gene therapy. Gene therapy is not new and has been developed and improved by researchers for the past couple years. Being an experimental technique, gene therapy also has its pros and cons, but so far is showing positive and rising success rates.
Over 40 years ago, two men by the names of James Watson and Francis Crick discovered deoxyribonucleic acid, or DNA. DNA is hereditary material in humans and almost all other organisms (What is DNA?). From this finding, gene therapy evolved. Today, researchers are able to isolate certain specific genes, repair them, and use them to help cure diseases such as cystic fibrosis and hemophilia. However, as great as this sounds, there are numerous ethical and scientific issues that will arise because of religion and safety.
In September 14, 1990, an operation, which is called gene therapy, was performed successfully at the National Institutes of Health in the United States. The operation was only a temporary success because many problems have emerged since then. Gene therapy is a remedy that introduces genes to target cells and replaces defective genes in order to cure the diseases which cannot be cured by traditional medicines. Although gene therapy gives someone who is born with a genetic disease or who suffers cancer a permanent chance of being cured, it is high-risk and sometimes unethical because the failure rate is extremely high and issues like how “good” and “bad” uses of gene therapy can be distinguished still haven’t been answered satisfactorily.
In the past 40 years, scientists have developed and applied genetic engineering to alter the genetic make-up of organisms by manipulating their DNA. Scientists can use restriction enzymes to slice up a piece of DNA from an organism with the characteristics they want and spliced (joint) to a DNA from another organism. DNA that contains pieces from different species is called recombinant DNA, and it now has different genetic material from its original. When this DNA inserted back into the organism, it changes the organism’s trait. This technique is known as gene-splicing (Farndon 19).
"The aim is to decrease the fear of a brave new world and to encourage people to be more proactive about their health. It [Gene therapy] will help humans become better physically and even mentally and extend human life. It is the future” (Hulbert). Dr. Hulbert, a genetic engineer, couldn’t be anymore right; more time, money, and research needs to be put into gene therapy and genetic engineering, since it can cure certain illness and diseases that are incurable with modern medicine, has fewer side-effects than conventional drugs or surgery, and allows humans to be stronger physically and mentally at birth. Gene therapy or genetic engineering is the development and application of scientific methods, procedures, and technologies that permit direct manipulation of genetic material in order to alter the hereditary traits of a cell, organism, or population (NIH). It essentially means that we can change DNA to make an organism better. Genetic engineering is used with animals and plants every day; for example with genetic...
There are two types of genetic technology. Somatic gene therapy is used to repair genes that do not function properly in a person. Not that controversial because it only changes genes in organs and is not passed on to the next generation (p. 116, Garreau, 2005) .
Human Genetic Engineering: Designing the Future As the rate of advancements in technology and science continue to grow, ideas that were once viewed as science fiction are now becoming reality. As we collectively advance as a society, ethical dilemmas arise pertaining to scientific advancement, specifically concerning the controversial topic of genetic engineering in humans.
According to Linda MacDonald Glenn, J.D., L.L.M., “The introduction of these diseases to the human population could have devastating consequences” (Glenn). Human genetic engineering may also cause the production of unwanted mutations, such as developmental issues. The procedures that would be used for genetically modifying human cells would include numerous alterations to sperm, eggs, stem cells, or embryos before entering a woman’s uterus. This could potentially modify the growth and development of the fetus in ways that have not yet been thoroughly explored (Genetics and Public Policy Center).... ...
Genes are made of DNA – the code of life (Gene Therapy- The Great Debate!). The changes in genes may cause serious problems, which we called genetic disorder. In theory, the only method to cure genetic disorders is gene therapy, which basically means the replacement of genes in order to correct the loss or change in people’s DNA. Although gene therapy gives patients with genetic disorders a permanent cure, it is controversial because it has safety and efficacy problems, and raises ethical issues.
In a recent study by Editas Medicine, they are working with CRISPR to prevent a blinding disorder called “leber congenital amarurosis” which is a rare inherited disease (Knapton, 2015). This disorder is due to a defect in a gene that encodes for a protein that is essential for vision, using CRISPR they are able to cut out the mutated areas. This is one example on how modifying DNA can be beneficial and why it should be accepted. Many inherited disorders like cystic fibrosis or Tay-Sachs. With parents having genetic screen tests they can provide a better future for their children and prevent them from a life with a
Scientists and the general population favor genetic engineering because of the effects it has for the future generation; the advanced technology has helped our society to freely perform any improvements. Genetic engineering is currently an effective yet dangerous way to make this statement tangible. Though it may sound easy and harmless to change one’s genetic code, the conflicts do not only involve the scientific possibilities but also the human morals and ethics. When the scientists first used mice to practice this experiment, they “improved learning and memory” but showed an “increased sensitivity to pain.” The experiment has proven that while the result are favorable, there is a low percentage of success rate. Therefore, scientists have concluded that the resources they currently own will not allow an approval from the society to continually code new genes. While coding a new set of genes for people may be a benefitting idea, some people oppose this idea.
Gene Therapy, although very beneficial if used to research properly, should not advance to the length of altering a human organism through Germline Gene Therapy. Right now it is acceptable to use to gain a better understanding of how DNA and genes work, but it should never surpass that. “Any mistake you make on a germ line is passed to future generations, and may affect thousands of people. The people affected by germ-line gene therapy - children, and future descendants, did not agree or consent to the treatment. You are tampering with nature and playing God. When gene therapy goes wrong, it could lead to horrific mutations. Treating defective genes puts you on a slippery slope - soon you will be 'curing ' baldness, obesity, poor eyesight etc. - actually enhancing the population, like Hitler 's idea of a master race. Only rich people will be able to afford these treatments - it goes against ideas of equality and justice.” For these such reasons is why that Germline Gene Therapy is against ethical code, and should never be instated into the
"The new science of genetic engineering aims to take a dramatic short cut in the slow process of evolution". In essence, scientists aim to remove one gene from an organism's DNA, and place it into the DNA of another organism. This would create a new DNA strand, full of new envcoded instructions, instru...