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Genetics Essay Examples

Essays on Genetics

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Transgenesis and Selective Breeding

Introduction The relation between humans and genetic manipulation is older than we think. Humans have been manipulating the transfer of genetic information between organisms for over 10.000 years. The first experiences were with cultivation of grains and domestication of animals. The facilities that these methods bring in order to keep having the necessary stuff for our survival make the humans improve their techniques. Now, with the advances of science, we have some sophisticated ways to make easier get the most…...

GMO Labeling Issues

Nowadays, genetically modified food surrounds us all around the world and we don’t even know it. This food is composed of unnatural products. According to the website 20 questions on genetically modified foods, “genetically modified organisms (GMOs) can be defined as organisms in which the genetic material (DNA) has been altered in a way that does not occur naturally”. This means that they are adjusting the food in a certain way, making it unnatural. The GM crops currently on the…...

Genetics of Obesity

According to the WHO (2010), childhood obesity is one of the most serious public health challenges of the 21st century. Globally, in 2010 the number of overweight children under the age of 5 is estimated to be over 42 million (WHO, 2010). Obesity can be defined in a number of ways, e.g. by population means, BMI and waist circumference (Odgen, 2012). And according to Kleiser et al (2009), obesity may have several short-term consequences (e.g. social discrimination, lower quality of…...

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Genetically Modified Foods

Introduction Genetically modified, by definition, is a term denoting or derived from an organism whose DNA has been altered for the purpose of improvement or correction of defects. (dictionary.com) Genetically modified foods are foods that have been altered to enhance certain traits for the purpose of making them more desirable to consumers. Since the development of this process, modified foods have become more common throughout the years, and with their increase in production there has also been great controversy. History…...

Human Cloning

Introduction: The possibility of human cloning, raised when Scottish scientists at Roslin Institute created the much-celebrated sheep "Dolly", aroused worldwide interest and concern because of its scientific and ethical implications. The feat, cited by Science magazine as the breakthrough of 1997, also generated uncertainty over the meaning of "cloning" --an umbrella term traditionally used by scientists to describe different processes for duplicating biological material. Given this information, you may ask, or maybe right now, you are wondering what actually “cloning”…...

The Importance of Food Labeling

The Importance of Food Labeling It’s Important that food producers label foods so that people can choose to avoid irradiated or genetically modified food. Also, food labeling is crucial to people with certain food allergies. Some foods are irradiated to clear foods of food-borne diseases and provide support for unsafe factory farming practices. When food is genetically modified the food is engineered with different strains of DNA mixed with different proteins and unnatural chemicals which lead to different health risks.…...

Biotechnology and Genetically Modified Food

Abstract Genetically modified crops and food involve the deliberate altering of the genetic material of plants and animals. Biotechnology when used for agriculture and food production will cause concerns over the environmental, economic and ethical issues that this technology affects. Genetically modified crops that are resistant to pesticides can help contribute to increased yields and agricultural growth. Most foods we consume today have been genetically modified or they have ingredients that are derived from gene modification technology. Some specific fears…...

Positive and Negative Impact of Genetically Modified Food

Genetically modified (GM) foods are foods derived from organisms whose genetic material (DNA) has been modified in a way that does not occur naturally, e.g. through the introduction of a gene from a different organism. Currently available GM foods stem mostly from plants, but in the future foods derived from GM microorganisms or GM animals are likely to be introduced on the market. Most existing genetically modified crops have been developed to improve yield, through the introduction of resistance to…...

Cystic Fibrosis, a Genetic Disorder

Cystic Fibrosis is one of the most widespread genetic disorders in the modern world. While only 30,000 members of the American population is affected by the disease, millions of Americans are carriers of the disease; the difference between carriers and sufferers of the disease lies in the autosomal recessive nature of Cystic fibrosis. A truly documented history of Cystic fibrosis did not exist until well into the 1930s, although people did have an idea of what it was, as shown…...

Discuss Biological Explanations of Schizophrenia

re are several different explanations for the disorder schizophrenia. One of these explanations is the biological model. This model explains schizophrenia through biological faults, for example viral infections and brain abnormalities. Genetic Factors Some psychologists say that schizophrenia can be passed down generations, meaning that some people inherit the disorder from their parents. Twin research has consistently shown that identical twins have a greater risk of developing schizophrenia, if their twin has the disorder, than non-identical twins. Gottesman found monozygotic…...

Compare and Contrast the Processes of Mitosis and Meiosis.

Many living organisms in the Earth can continue because of the process of producing individuals called reproduction. Both mitosis and meiosis which are nuclear division in mitotic and meiotic cell division respectively play important roles in reproduction. In this essay, the processes of mitosis and meiosis are going to be compared, and the roles and significance of these two processes in the life of flowering plants and mammals are going to be discussed. Both mitosis and meiosis involve the passing…...

Pros and Cons of Genetic Engineering

With the discovery of DNA and unravelling the genetic code it contains, molecular biologists have finally come close to understanding what determines the form and function of organisms and can use this to design organisms at will. This is illustrated by the experiments on the transgenic fruit fly which has eyes on its antennae (Walter Gehring, Basel Biocentre, Switzerland. see the year 1994 in http://www.ifgene.org/history.htm ). This new technology will have more benefits for human existence than all the past…...

Oryx & Crake Discussion Questions

1.Oryx and Crake includes many details that seem futuristic, but are in fact already visible in our world. What parallels were you able to draw between the items in the world of the novel and those in your own? 2. Margaret Atwood coined many words and brand names while writing the novel. In what way has technology changed your vocabulary over the past five years? 3. The game "Extinctathon" emerges as a key component in the novel. Jimmy and Crake…...

GATTACA: 'Vincent is supposed to be weak. Yet his strength of character is the key to the story.’

'Vincent is supposed to be weak. Yet his strength of character is the key to the story.’ Discuss. The film text 'Gattaca', directed by Andrew Niccol can be seen as a piece that draws many parallels to the world that we live in today. One such parallel is the fact that often in society, the ones who are at a disadvantage are the ones who display the greatest strength of character. Niccol uses Vincent as the vehicle through which he…...

Experiment on E Coli Genetic Transformation

Genetic transformation is where one organism takes on a characteristic from another organism (Bacterial Transformation 2013). For this experiment we used the bacteria E. Coli to take in foreign jellyfish DNA which will allow it to change genetic material. This experiment determines the effects that the plasmid pGLO has in transferring the Green Florescent Protein found in a jellyfish into the bacteria. It determines whether or not pGLO acts successfully as a vector to move genes from one organism to…...

The society of Gattaca

Section 1: Question 1 – The society of Gattaca works to repress rather than to enhance the potential of human beings. Discuss. In a society where genetic superiority and engineering to create the ‘perfect’ person is a priority over all else, it would be a normal assumption that society would be a better place and people would be much happier, but in Gattaca it is quite the opposite. From the beginning of the film we see haunting images of the…...

Recombinant dna technology

Recombinant DNA technology refers to the ability to isolate specific DNA sequences and alter or manipulate them to produce desired effects. More often, recombinant DNA technology is referred to as biotechnology. Recombinant DNA technology is fascinating in that it has developed into a multi-billion dollar industry, and completely revolutionized agriculture and pharmaceutical industries, all within the past 50 years. According to one account, biotechnology was born during a meeting in Hawaii in 1972 between Stanford medical professor Stanley Cohen, and…...

Monsanto SWOT Analysis

Business summary Monsanto Business (Monsanto or the company) uses agricultural items to farmers. Its items consist of seeds, biotechnology trait items, and herbicides. Monsanto has operations in the US, Canada, Europe, South America, Asia, and Africa. It is headquartered in St. Louis, Missouri and uses about 26,100 individuals, of which more than 5,500 individuals are temporary workers. The business tape-recorded incomes of $11,822 million during the financial year ended August 2011 (FY2011), an increase of 12.8% over FY2010. The operating…...

Are we humans the product of nature or nurture?

Nature is how much of your personality is genetic, what you were born with. Nurture is how much of your personality was caused because of your environment, how you were raised. So does nature or nurture contribute more to someone's personality and behaviour? Or do they both play a role in shaping our lives? I hope to come to a conclusion with this debate in the end of my thesis. With nurturing, people tend to observe others actions and behaviour,…...

DNA Sequencing

How can scientists identify specific bacteria when they are amplifying and studying the same region of DNA in each species? Specialist or doctors compare the nucleotides of the DNA sequences to specific bacteria. Why is PCR used in the process of DNA sequencing? Used to make small segments of DNA. To analyze DNA more DNA is required to attain proper results. How can the DNA sequencing technique shown in the virtual lab be used to identify other classes of pathogens,…...

Biology Lab Report “Independent Assortment & Dihybrid Cross"

Introduction: In genetics, when crossing a purebred white flower with a purple flower, we might expect its offspring to be a blend of both colors. Instead, we see that its offspring is purple as well. This is led to be by one trait being dominant over another trait. Gregor Mendel came up with a theory that each member of a pair of homologous chromosomes separates independently of the members of other pairs so the results would be random. This law…...

McDonald's vs Taco Bell Fast Food Restaurants

Since the last decades the fast-food industry has been developing rapidly and has effectively penetrated majority of the market internationally. MC Donald, started in 1954, is now the world leading global food service retailer generating a revenue of 28.11 billion U.S dollars in 2013 (MC Donald’s revenue 2013). Contrarily, due to the poor managerial function, Taco Bell , an American chain of fast food restaurants founded in 1962, hits upon a weak sales during 2000 (Taco Bell corporation). This essay…...

Seeds of Death Unveiling the Lies of GMO

The documentary that I watched is called Seeds of Death Unveiling the Lies of GMO. I found this documentary to be very interesting because it tells you about genetically modified organisms and the damages it can do to humans, animals and our environment. This documentary tells you that the companies that produce the genetically modified organisms (GMOs) are more interested in making money than worrying about the consequences of it making humans sick, killing animals, insects and how it is…...

Genetic disease

1. What does the term genetic disease mean? What examples of generic diseases do you know about? A genetic disease is a disease caused by an absent of defective gene in the DNA. Students may know of sickle cell anemia, which is a disease resulting from defective red blood cells; treatment of sickle cell anemia focuses primarily on relieving pain and controlling infections and other complications that may occur. 2. Adding human DNA to bacteria makes it possible to make…...

?Outlining and evaluating biological explanations of obesity

Various explanations can be provided for the reasons of obesity, from biological explanations, to neurological and evolutionary theories. Even socio-economic reasons could give insight into why some people have a higher likeliness of obesity Evolutionarily, the thrifty gene hypothesis provides insight as to why many suffer from obesity, as it suggests that our current genes are no longer suited to our new environment. Modern day society is filled with foods of a high calorific content, and our energy expenditure has…...

Justice and DNA as a Key Witness

Criminals, often unknowingly, leave parts of themselves behind. These pieces are not always visible to the untrained eye. Hair, skin, blood, and fingerprints all contain elements that are unique to each person. It is with DNA testing and fingerprinting, that criminals can be identified and crimes can be linked. This system of testing and matching has become the “most essential and reliable method of catching criminals” in the United States (Lynch 67). Advancing technology is not only solving crimes, but…...

Cystic Fibrosis Case Study

Consult your textbook and trustworthy Internet sites to answer the following questions: 1. Which organs are affected by cystic fibrosis? What are the disease symptoms? Organs that are affected by cystic fibrosis include the lungs, pancreas, liver, sweat glands, reproductive organs, nose and sinuses. The symptoms of cystic fibrosis include coughing with mucus coming up, wheezing, breathlessness, decrease in ability to exercise, lung infections, inflamed nasal passages, stuffy nose, bad growth, intestinal blockage, severe constipation and greasy foul smelling stool.…...

Genetics of Ascospore Color in Sordaria lab

Introduction: To achieve genetic experiments with haploid organisms, genetic strains of different genotypes must be crossed from one another. Following fertilization and meiosis, the meiotic products can be analyzed as the ascomycete fungus, Sordaria fimicola. Sordaria can be used as a model to study meiotic segregation. The trait followed was the ascospore color. Ascospore color is a single gene trait therefore it is easily observed under a light microspore. Which allele is dominant is very tough to say, because dominant…...

An essay on dwarfism, telling the causes, symptoms, and treatments

Dwarfism is a genetic abnormality, that results in short stature. Most people consider dwarfism to be an adult height of four feet ten inches and under. Someone can develop dwarfism from different genetic, and other conditions. It is estimated that between one in every 14,000, and one in every 27,00 people are born with dwarfism each year. There are many different conditions that cause dwarfism. Some of these conditions are a bone disorder called skeletal dysplasias. The skeletal dysplasias are…...

World such as that depicted in "Gattaca"

Describe the advantages and drawbacks of living in a world such as that depicted in GATTACA. Secondly, envision that you live in this world. Describe how you envisage your life, including the good and bad. Consist of the sort of issues that people residing in this world would have to deal with daily. The film Gattaca is based upon the style of a eugenic society in which science and medicine are imperative in the running of the world. Medicine in…...

Gene Mutations

A gene is a long sequence of nucleotides on a DNA molecule. A mutation is a change in the amount of an organism's genetic material and when a change in genotype produces a change in phenotype, the individual affected is said to be a mutant. A gene mutation involves a change in one or more of the nucleotides in a strand of DNA. The sequence of nucleotides in a gene controls the order in which amino acids are made into…...

The advantages and disadvantages of cloning

The creation of an identical copy of something is the process of cloning. It is simply a form of asexual reproduction. Cloning is a big issue in todays world of science because of the potential benefits, the risks involved, and medical, ethical and religious conflicts. Plants and animals have already been cloned and stem cell research is already going ahead, and maybe one day science will be able to clone a human. The division of opinion on cloning will require…...

Heredity, the Environment, and Development

The field of behavioral genetics aims to comprehend how and why we develop the method we do. Behavioral genetics seeks to find how not just heredity, but likewise environment, contributes in the advancement of people. The field has actually progressed a fair bit in the last couple of years. Studying genetics helps us to be able to predict future behaviors and likewise possibly help us to use genetic modification. Because the research study of behavioral genes can potentially lead us…...

Pros and Cons of Genetically Modified Foods

Our ancestors first cultivated plants some ten thousand years ago. They domesticated animals later and then selectively bred both plants and animals to meet various requirements for human food. Humans discovered natural biological processes such as fermentation of fruits and grains to make wine and beer, and yeast for baking bread. Manipulation of foods is not a new story, therefore. The latest agricultural discovery uses genetic engineering technology to modify foods. Farmers and plant breeders have been changing crop plants…...

DNA Replication Transcription and Translation

The replacement of dead cells and the repair of worn out tissues, as well as growth, are the results of cell division. Prior to division, the cell must duplicate its DNA in order to give identical DNA to its daughter cells. This process is done through DNA replication which requires transcription and translation processes. During replication, the DNA unwinds, as aided by the DNA polymerase, and generates two identical DNA molecules. In the synthesis of protein, the DNA also unwinds…...

Genetic Engineering

The 21st century is the era of the DNA. The century before, was the era of computers, which brought about remarkable technological advancements to society and these have also contributed to the current genetic revolution, which promises to do for life what computers did for information. This increasing power and accessibility may one day give parents the option of genetically engineering the "designer baby". This may be used to spare the unborn from disease or, possibly, make them tall, intelligent…...

GATTACA film analysis on the final scene

The final scene of GATTACA had an unexpected twist that triggered mixed emotions of confusion, sorrow and happiness. The irony of Vincent finally fulfilling his life's mission and Jerome no longer having one was heart wrenching, after all that they went through together to defy the odds and expectations of perfection set by Society. However, it was Jerome's choice to end his life having finally come to peace with his inner turmoils which was evident when he was first introduced…...

Biological approach to health and social care

The biological approach can be used to explain many thing within health and social care, it can also be useful in diagnosing and treating service users, and is effective for practitioners to asses and help their patience within heath care and social care alike. The biological approach can have a positive impact on the service user because tests such as the assessment scale are available so that they can fully understand why there behaviour is the way it is, and…...

DNA Extraction Lab Report

*To make the extraction buffer, 100 ml of shampoo (without conditioner) was mixed with 15 g of NaCl and 900 ml of water. Procedures Used in Experiment Once all materials were gathered by group members, each individual group began their experiment. The first step was to place the strawberry or banana in the zip lock bag and smash the strawberry/banana for 2 minutes. The strawberry produced enough juice and water based substance that no added water was needed, however the…...

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