Genetic Engineering Overview
Genetic engineering is the artificial alteration of the genetic code.
Genes are sections of the DNA, which control the traits of an
individual, such as eye colour, and are different for every person.
With natural breeding, genes are passed down generations, but with new
technology scientists are able to identify an individual gene, and
insert it into another organism, which will then carry the trait of
that gene. This organism is transgenic, meaning its DNA has been
altered. As 'Food for our Future' says, the bases of our DNA make up a
"language", and all species speak the same language, which is why it
is possible for genes to be transferred between species. Human genes
can work in bacteria, and elephant genes can work in mice. Genetic
engineering has few limits, except our imagination, and our personal
morals.
There are many useful applications of genetic engineering. It is
possible to insert human genes into sheep so they secrete
alpha-1-antitypsin in their milk, which helps to treat lung cancer. A
DNA test has been designed which detects pigs that are carriers of a
genetic mutation that causes Porcine Stress Syndrome, which affects
the quality of the meat. Also, there is cloning, which is a branch of
genetic engineering where the genetic material of an organism is
duplicated. Ian Wilmut discovered that in the body of a mature adult,
the cells "switch-off" the genes not relevant to their function. He
found a way to reactivate these genes and grow a completely new
organism from this. In 1997, Dolly the Sheep was the first adult
mammal cloned. In the future, it may be possible to make a 'twin' of
yourself, or to make 'improvements by identifying the gene that wants
altering. The Human Genome Project, which is funded by the US
Government, plans to identify the entire human genome. Its aim is to
treat genetic disorders, such as Downs Syndrome and Cystic Fibrosis.
This is called gene therapy. Research on the human genome can be done
on aborted fetuses.
Show your understanding of the structure of nucleic acids by describing the similarities and differences between DNA, mRNA and tRNA. Your descriptions should include drawings with labels of the nucleotide structures and the overall structures of each where applicable.
Imagine having to explain to your child why they don’t look like you because of you’re selfishness. Imagine thinking your going to design your baby and turns out it has severe leukemia because scientists didn’t put together your baby right. Where Genetic Engineering and Cloning is headed this is possible. Not only is this effecting your child its affecting the whole world as well. Many people think they only do this in humans it happens in plants and animals too. Genetic Engineering and Cloning changes the natural possess in humans, plants, and animals.
Genetic engineering depends on the location and analysis of genes on chromosomes and ultimately DNA sequencing. The early cartography of the genes used the principles of Mendelian genetics . It is assumed that alleles that are transmitted together side by side are located on the same chromosome : it is said that are connected or linkage . These genes form a bridging group - linkage group : are the same for gametes and are usually transmitted together , so they do not have independent distribution. Crossing-over occurring during meiosis may cause these alleles can be exchanged between the chromosomes of a homologous pair .
This encyclopedia was extremely helpful. In not knowing all of the exact terms and basic knowledge of genetic engineering, it helped inform any reader of all this and more. The pages that had information on genetics and genetic engineering, had detailed definitions and descriptions for all the terms and ideas. Instead of focusing more towards the future of genetic engineering, it gave numerous facts about the technology and accomplishments of today. In addition to basic knowledge information, history, diagrams, and background information was provided. Including genetic testing, genes and their formation, and genetic background. The encyclopedia gave easy, organized, and accessible information to use.
Genetic engineering has been around for many years and is widely used all over the planet. Many people don’t realize that genetic engineering is part of their daily lives and diet. Today, almost 70 percent of processed foods from a grocery store were genetically engineered. Genetic engineering can be in plants, foods, animals, and even humans. Although debates about genetic engineering still exist, many people have accepted due to the health benefits of gene therapy. The lack of knowledge has always tricked people because they only focused on the negative perspective of genetic engineering and not the positive perspective. In this paper, I will be talking about how Genetic engineering is connected to Brave New World, how the history of genetic engineering impacts the world, how genetic engineering works, how people opinions are influenced, how the side effects can be devastating, how the genetic engineering can be beneficial for the society and also how the ethical issues affect people’s perspective.
This paper goes over genetic engineering and how it is used today in the medical field as two types on humans, disabled genetic engineering and trait genetic engineering. This two types of genetic engineering are still debatable since they have to surpass many obstacles and laws. The sources gave statements from professionals and experts on genetic engineering, biomedical science, biomedical engineering, and human anatomy and physiology. The individuals gave their inputs on how they view genetic engineering on human beings.
"Whoever could make two ears of corn, or two blades of grass grow upon a spot of ground where only one grew before would deserve better of Mankind, and do more essential service to his country, than the whole race of politicians put together." -The King of Brobdingnag, Gulliver's Travels by Jonathan Swift, 17271
Modern technology has taken amazing strides in the past few years. We have changed the way we deal with food production, agriculture, and many other aspects of life.. Scientists have begun utilizing these advances in technology and knowledge to gain insight as to how the human species functions. They are on the verge of manipulating the way humans relate to the natural world. This revolutionary breakthrough is what is known as Genetic Engineering. Genetic Engineering is the process of manually adding new DNA molecules into an already existing organism. A simplified version of the process works by physically removing a gene from one organism and placing it into another. This is being done in an effort to
The debate over whether or not the use of genetic engineering in humans is ethical has been a highly controversial topic for the past two decades. True, scientists can genetically manipulate genes in order to help cure genetic diseases, but genetic engineering can also have some undesirable consequences. Not only could genetic engineering harm humans physically, but change the way we view other humans. While the use of genetic engineering in humans can treat and cure some medical conditions, genetic engineering is a discipline that should remain unexplored.
Whether we like it or not genetic modified organisms (GMOs) are on our dinner table and in our air. Suddenly, activists and the media have become obsessed with avoiding GMOs and labeling them as an evil new technology. The truth is these products have been out in the public since the early 1990s. Genetic engineering (GE) is just a tool that is being used to improve our methods in agriculture, just as technology including computers or other new electronic updates that make our lives easier day by day. We use science to make improvements little by little over the years while some fail others may be successful. It is safe to say some technology that comes with life altering benefits may also come with some risks. Those who argue against GMOs choose to ignore all the benefits GE has provided us with so far and tend to focus on risks that realistically have nothing to do with the science of genetic engineering. Most anti-GMO activists are uneducated on the topic and listen to unreliable bias sources. The media has people focused on the wrong side of the debate. Banning genetic engineering, an important biotechnology, would be an impossible and foolish fight. In a world with a tremendously fast growing population, climate changes due to global warming, and economical faults, GMOs might be the best solution.
Imagine how it would feel walking into the hospital with a failing heart and being able to get a transplant of your own organ. Humans are born with only one copy of the organs for each function required by the body. Despite the ability to recover certain cells, not everything within the body is able to regenerate itself. With the now never-ending possibilities of our advancing technology, genetic engineering has entered the lives of humans in ways that were never before expected. Genetic engineering is a modern topic that should be implemented at a greater rate because it helps us fight problems that are beyond basic medicine, it prolongs life, and increases the quality of it by adding techniques to treatment rather then more medication.
Genes are, basically, the blueprints of our body which are passed down from generation to generation. Through the exploration of these inherited materials, scientists have ventured into the recent, and rather controversial, field of genetic engineering. It is described as the "artificial modification of the genetic code of a living organism", and involves the "manipulation and alteration of inborn characteristics" by humans (Lanza). Like many other issues, genetic engineering has sparked a heated debate. Some people believe that it has the potential to become the new "miracle tool" of medicine. To others, this new technology borders on the realm of immorality, and is an omen of the danger to come, and are firmly convinced that this human intervention into nature is unethical, and will bring about the destruction of mankind (Lanza).
Human genetic engineering can provide humanity with the capability to construct “designer babies” as well as cure multiple hereditary diseases. This can be accomplished by changing a human’s genotype to produce a desired phenotype. The outcome could cure both birth defects and hereditary diseases such as cancer and AIDS. Human genetic engineering can also allow mankind to permanently remove a mutated gene through embryo screening as well as allow parents to choose the desired traits for their children. Negative outcomes of this technology may include the transmission of harmful diseases and the production of genetic mutations. The benefits of human genetic engineering outweigh the risks by providing mankind with cures to multiple deadly diseases.
In the past three decades, scientists have learned how to mix and match characteristics among unrelated creatures by moving genes from one creature to another. This is called “genetic engineering.” Genetic Engineering is prematurely applied to food production. There are estimates that food output must increase by 60 percent over the next 25 years to keep up with demand. Thus, the result of scientist genetically altering plants for more consumption. The two most common methods for gene transfer are biological and electromechanical. “Early experiments all involved changing DNA using bacterial vectors”(Randerson, 2001). Through other advances scientists proclaim how they can improve the human gene pool. All humans have genes which carry certain traits structuring a person’s chemical make-up. "Inheritable characteristics are passed from one generation to the next through DNA, a molecule that is present in all of our cells”(Massey,2001).
What are the principle, ethical issues and experimental procedures used in genetic engineering and cloning? Should Cloning be allowed to continue?