The Uses of Biotechnology Essay

What field/program are you studying at Guilford Technical College and why did you choose it?

The basis of genetics were established by Gregor Mendel, an Augustinian monk in the mid to late 1800’s. Through the observations from cross-pollinating pea plants, Mendel was able to discover the basic laws of inheritance. Mendel’s experiment was to cross pollinate pea plants and observe how traits were passed on. He started his experiment with two true breeding pods,

Throughout the early 19th and 20th century, many scientists have studied deoxyribonucleic acids in order to attain higher understanding over the matter. Johann G. Mendel had figured out and understood the laws of heredity. Friedrich Miescher amazingly discovered DNA in 1869, even though scientists did not understand DNA was the genetic material

Biotechnology, at its simplest is technology based on biology – it employs the use of cellular and bimolecular processes to develop products and technologies. The variety of living cells used for their biochemical talents range from simple singled-cells bacteria and yeast to complex multi-cellular organisms, such as plants and humans. Over the years, biotechnology has been a rapidly developing area of

Genetic Engineering has a multiplicity of uses in agriculture. It can be utilized to increase crop output, resistance to pest and diseases, and enhanced growing conditions. Sagoff states “Genetic engineers can help peasant societies by engineering plants and animals to stand up to the challenges of local conditions, such as blights that affect yams and other traditional crops” (14). The article “Biotechnology and Agriculture: The Common Wisdom and Its Critics.” by Sagoff. Discusses how genetic manipulation of crops would be of major benefit in developing countries, primarily because said countries can 't grow enough food to suffice the populous. Genetic manipulation of plants can make food easier to grow in these countries.

So you ask, "How does this work to catch or release criminals?" DNA is very simple and small. Everyone has different patterns. Using certain machinery to detect a person's DNA solves these patterns. This evidence will create a future in crime scene investigation.

Controversy. Often heard on the news and found plastering the headlines of shady websites. However, there is none more associated with the word than the practice of genetically modifying organisms. Ever since the Industrial Revolution,the shift from manual labor to steam power, technology has developed at an accelerated pace, paving the way for greater innovation. Recently, the emergence of Biotechnology from the study of DNA has allowed for the creation of GMOs, organisms whose genes has been edited in order to express a certain trait. GMOs are most commonly used in agriculture, often designed for herbicide resistance or pesticide creation. Due to Media overreaction and false studies, the public has been whipped into a frenzy, demanding scientists

After the spike in DNA discoveries and confirmations that could be compared to the 1849 California gold rush, scientists began to try to find other uses for DNA. Since then, DNA has been used for many things such as finding criminals and confirming paternity/maternity. Also DNA has been used to track diseases and problems that start at the molecular level. Three of the newer advances in DNA technology are DNA Fingerprinting, Recombinant DNA (rDNA) and Paternity/Maternity Tests.

The origins of DNA were first discovered during 1857 by Gregor Mendel the "Father of Genetics”, whom was performing an experiment of genetics with pea plants, and would provide a basic foundation towards DNA and Genetics. Friedrich Miescher and Richard Altmann in 1869 were also part of the first people to discover DNA. While testing some sperm of a salmon, they discover a strange substance that they would name as "nuclein", which is known as DNA. This new form of "nuclein" (DNA) would be found to only exist in chromosomes. Frederick Griffith, a researcher, found the basis on DNA, from a molecule inheritance experiment involving mice and two types of pneumonia. His findings were that, when virulent disease is heated up (to kill) and is

Genetics was first established in 1866 by Gregor Mendel and his paper on inheritance of pairs. He used peas to prove that certain traits were passed on through the generations and it became the foundation for all research done in the future. This development led to Friedrich Miescher discovering the existence of DNA in 1869, though the importance of the discovery was not embraced by the academic community for a great many years. The first linkage map of DNA map was created in 1913 and this lead to the eugenics movement. The eugenics movement was established in the 1930s and essentially wanted to create a perfect master race by the elimination of people with certain traits.

The work of these four people led to a complete restructuring of the beliefs of the scientific community regarding genetic information. Their initial word led to further work which encompassed their hypothesis of how DNA replicates itself. From this work came the modern technologies of DNA fingerprinting and sequencing.

Techniques, like “[plant] cell culture, recombinant DNA [deoxyribonucleic acid] technology and cellular cloning, [would] now provide us with new ways to tap into natural diversity”(Seidler para. 3). To put it another way, biotechnology could provide new medicines. New medicines could eliminate side effect and eradicate repeated visit for injection in treatment for diseases or cancer(Christopher para. 4). Therefore, limiting biotechnology would hinder the process of creating new medicine. Medine would not be the only one affected in the medical field, but in addition, diseases could be

Instead of transferring large blocks of genes from donor plant to recipient, small isolated blocks of genes are put into the plant chromosome through biolistics, vectors, or protoplast transformation (Horsch 1993). Biolistics is a technique that shoots the gene block into the potential host cell. In order for the process to succeed, the microscopic particles and DNA must enter the cell nuclei and combine with the plant chromosome. Biolistics is commonly used but has a slight failure risk since the breeder has little control over the destination of the gene block (Mooney & Bernardi 1990). Bacteria or viruses can also carry the gene blocks into a new cell. Common vectors in gene transfer between plants are Agrobacterium tumefaciens and Agrobacterium rhizogenes. In the soil, the bacteria will infect the plants with their own plasmid, transferring the desired gene that was placed in the bacteria's DNA. Vector gene transfer is a preferred method of transformation since this modification already occurs naturally in the environment (Rudolph & McIntire 1996). Last is protoplast transformation, which uses enzymes to dissolve the cellulose in the plant wall that leaves a protoplast. Once a specific gene block is added to the protoplast, the cell wall will re-grow into a transgenic plant.

The coding region of the gene is usually fused to a promoter, most commonly used is the 35S promoter from cauliflower mosaic virus (CMV), in order to promote higher expression levels. (Snow et. al, 1997) The popular method for genetic engineering of crop plants is natural gene transfer via an Agrobacterium tumefaciens vector, a bacterium normally found in soils. The transfer-DNA (T-DNA) vector is made by inserting the desired gene fragment in between specific 25bp repeat domains in the bacterium. The vector is then inserted into the Agrobacterium and "the virulence gene products of Agrobacterium actively recognize, excise, transport, and integrate the T-DNA region into the host plant genomes." (Conner et. al, 1999) The amount of DNA transferred is only about 10kb and the nature of the gene is usually well understood. The expression of the gene introduced can also be controlled by adding additional sequences that might allow the gene to be constitutively expressed, expressed only in certain cell types, or expressed as a result of different environmental changes. This method of gene transfer, however, will only work for the natural host range of the bacterium and therefore other methods are used for additional crop plants. Such methods are uptake of naked DNA by electroporation or particle gun bombardment. The use of genetic markers, as mentioned previously, allows for the preferential growth of cultures that contain the new genetic

Over the years, new innovations, ideas, and emerging technologies have transformed our society and our daily lives. These new discoveries have not only been developed to help make our lives easier, but to also help us live longer and stronger lives. Living in a world that continues to evolve, creates opportunities for new innovations and breakthroughs to arise within our society. Genetic engineering is just one of many examples of the advancements that young, intelligent minds have developed throughout the years. Genetic engineering is defined as “isolating a desirable gene” and injecting it into a plant or organism to produce “a desired characteristic” (Nutrition & Weight Control for Longevity, 2005). This biological technology has provided many advancement opportunities “for several industrial sectors such as agriculture, food manufacture and pharmaceuticals” (Rastall, 2002). Along with everything else in life, genetic engineering has some upsides and downsides. Today I am going to discuss the positive and negative outcomes that genetic engineering is recognized for in the agricultural industry.