Carl Stuart
Research Writing.
Descriptive Essay.
06th January 2014.
Genetically-modified Products: Harmful or Helpful?
Outline.
Specific
Purpose: To describe the helpfulness of genetically-modified products.
Thesis
statement: Genetically-modified products are helpful.
Introduction:
Human needs are continuously changing, and the traditional modes of satisfying
them are becoming more and more obsolete as these needs evolve. Hence, there is
a need to come up with unconventional solutions to solve these problems. The
most feasible solution lies in bioengineering genetically-modified products.
Body:
(a)
Description of genetically-modified products.
(b)
Advantages of genetically-modified products.
(c)
Disadvantages of genetically-modified products.
Conclusion:
Signal closing. Restate thesis. A personal statement concerning
genetically modified products.
Genetically-modified Products: Harmful or Helpful?
Since
their introduction, genetically-modified products have always been given
significant media attention. This attention mainly focuses on its safety
profile. This has led to public debates between opponents and proponents of
utilization of genetically-modified products. These debates have mainly revolved
around whether genetically-modified products are harmful or helpful to humans,
other life forms in the planet, and the ecology (Duvall 589).
The
thesis statement for this paper is that genetically-modified products are
helpful. With the evolution of human needs in the contemporary
world, genetically-modified products are exceptionally helpful, as they have
the potential to meet these needs as they evolve.
Since
the advent of the industrial revolution, human population has increased
exponentially. This was facilitated by the increased food production that was a
result of the earlier agrarian revolution. In 1950, the global human population
was about 2.5 billion. In 2000, it hit 6 billion. The rate of the global
population increase was an astounding 70 million people per year. This
threatened to outstrip the food supply, and thus, lead to mass starvation and
its consequent outcomes; such as wars, malnutrition related-diseases, increased
level of crime and death (Duvall 592).
Bioengineering
genetically-modified products started in earnest in the 1980s.
Genetically-modified foods had higher yields, and, were more resistant to plant
diseases and pests. Also, genetically-modified organisms produce probiotics and
some important human hormones such as insulin (Duvall 595).
Currently,
human needs are continuously changing, and the traditional modes of satisfying
them are becoming more and more obsolete as these needs evolve. Hence there is
a need to come up with exceptional solutions to solve these problems. The most
feasible solution lies in bioengineering genetically-modified products (Duvall
596).
Genetically-modified
organisms do produce genetically-modified products. Genetically-modified
organisms are life forms whose genotype has been changed through recombinant
DNA technology. Recombinant DNA technology encompasses transmission of genetic
material from the donor organism to the recipient organism, and subsequent
incorporation in the genotype of the recipient, and subsequently its expression
(Burke 110).
Transfer
of genes can either be a horizontal gene transfer or a vertical gene transfer.
There are three types of horizontal gene transfer: transformation, conjugation
and transduction. Vertical gene transfer involves the transfer of genes
from an organism to its offspring(s) (Burke 111).
Transformation
involves the uptake of DNA fragments from the external milieu, and,
incorporation of this DNA into the organism’s genotype before its subsequent
expression. This mode of gene transfer is used in molecular biology and
biotechnology to introduce novel genes into organisms’ genotypes.
Transduction occurs mainly in bacteria, and, it makes use of a virus called
bacteriophage T9 which is used to transfer genes from one bacterium to another.
Conjugation involves exchange of genetic material during cell-to-cell contact.
Most gene transfer agents are members of the relatively innocuous virus family,
alphaproteobacteria (Burke 113).
Genetically-modified
products have several advantages which are described below.
Genetically-modified cereals are pest resistant, hence they can be stored for
long times in silos without spraying pesticides on them. Such cereals are not
damaged by weevils or bean pests, thus, the population consumes healthy cereals
(Duvall 601).
Genetically-modified
seeds produce crops that are herbicide-tolerant. This requires only a single
application of herbicides, hence reducing agrochemical waste run-offs, thus,
protecting the environment. Also, these seeds produce crops that have the
property of disease resistance against diseases caused by micro-organisms. This
has consequently increased the yield of these plants. Such plants have been
postulated to have the capacity to produce enough food that can abate the
current global food crisis (Duvall 602).
Genetically-modified
seedlings have the property of cold tolerance. Thus, frostiness cannot
obliterate such fragile sprouts. This consequently increases the crop yield
(Duvall 605).
Plant
biologists have been able to create plants that have the dual properties of
drought tolerance and salinity tolerance. Such plants can be grown in areas
with low humidity or in areas where the salinity of the soil is extremely high.
This consequently increases the food output in the globe as more semi-arid and
arid lands are put into agricultural use (Duvall 607).
Genetically-modified
foods have the capacity to eradicate malnutrition and nutritional deficiencies.
Plants whose products contain the entire spectrum of macronutrients and
micronutrients have been produced using genetic engineering. Such food can be
used to eradicate malnutrition and deal with under-nutrition in third world
countries (Duvall 609).
In the
field of pharmacotherapy and immunology, molecular biologists have been able to
produce comestible vaccines in potatoes and tomatoes. Such vaccines can be
transported and stored easily. Insulin produced by genetically-engineered
bacteria is used to control type II diabetes mellitus; and, to treat type I
diabetes mellitus. This improves the quality of life (Duvall 615).
Genetically-modified
plants are also used for phytoremediation. This involves sequestering and
removing pollutants, such as heavy metals, from the soil and underground water
bodies (Duvall 623).
Opponents
of genetically-modified products cite the following reasons as the detriments
of using them. These reasons can be categorized into three classes: economic
considerations, environmental risks and safety of human wellbeing (Kaprinski
197).
There
are two main economic concerns. First of all, it is difficult to enforce
patents, and this has led to patent infringements. Secondly, the process of
bringing genetically-modified products to the market is long and expensive
(Kaprinski 200).
There are three main environmental hazards. First of all, genetically-modified
plants produce toxins or utilize large quantities of soil nutrients, thus,
causing unintentional harm to other beneficial food crops. Secondly, they have
reduced the effectiveness of pesticides. Finally, there has been inadvertent
gene transfer to other organisms. If these organisms are parasites, they are
imbued with resistance to pesticides, and, a longer life span (Kaprinski 205).
There
are two main risks to human health. First is allergenicity which is caused by
allergens that are protein products of the genes transferred. Secondly, it has
been hypothesized that genetically-modified products do cause adverse health
effects (Kaprinski 227).
The
United States government has policies which control the production, use and
sale of genetically-modified products. Thus, most of the concerns raised by
these opponents were considered during the formulation of these policies (Burke
378).
In
conclusion, genetically-modified products have the capacity to solve most of
the contemporary food crisis, while at the same time protect and revitalize
human ecology. Hence, genetically-modified products are helpful. I do
personally prefer genetically-modified foods as they contain all the necessary
nutrients. In finality, genetically-modified products hold the key to the
survival of the world. The reasons why governments must commit financial
resources to space exploration are explained hereafter.
Works Cited.
Burke,
James. Overview of genetic engineering.
Berkeley: UCLA press, 2011. Print.
Duvall,
George. "The benefits of genetically-modified products.” Journal of Genetic
engineering 78.9 (2011): 589-623.
Print.
Kaprinski,
Pyotr. "The demerits of genetically-modified products.” British Medical
Journal 56.7 (2012): 197-227. Print.
No comments:
Post a Comment
Only comments that conform to the natural laws of decency and formal language will be displayed on this blog.