Genetic Engineering Cons Essay Writing

Genetic Engineering pros and cons

July 31, 2013 - Posted to Assignment Help

The process

Genetic engineering is a complex process whereby scientist separates a gene from a chromosome. This is done by using an enzyme called endonuclease that is used to split the gene that is required from the chromosome. This process can be used for various reasons like giving an animal immunity whereby scientists will find an organism that has an antiviral gene and implant it into an animal and that way their offspring’s will also carry that new gene.


The pros of genetic engineering are numerous; in animals it enables hereditary diseases to be treated so as to avoid them passing to the off springs. Genetic engineering has also enabled scientists to make animals have certain desirable characteristics and also enabled them to remove certain characteristics creating better animals​


The cons of genetic engineering in animals are that they disrupt nature which is not easy to understand. When scientist introduce these new genes to animals they may lead to disastrous consequences since they are never sure what they will form. The society has not fully accepted genetic engineering and most of them see it as an n insult to nature

Natural methods

There is also the natural method of genetic engineering which is not done in the lab. This whereby organism of the same species are taken based on characteristics and they are mate together. This may be done when certain characteristics are wanted in the off springs like taking an animal that has a tendency to grow larger and another that has an unusual immunity and making them to mate so that the offspring can have both characteristics.

Genetic Engineering in Agriculture

Genetic engineering is also used in agriculture with the aim of improving foods. Crops are being created whereby they are resistant to diseases and pests and also need less water to grow. These plants also tend to grow faster.


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Advantages of genetic engineering in​ agriculture

The advantages in agriculture are also numerous as farmers are able to harvest more crops that have nutrients. It has enabled crops to be made to even grow in harsh conditions and therefore farming can be done any part improving the economy of people. The crops are also engineered in a way that they are resistant to pests and diseases thereby reducing the cost of farming that include buying pesticides. There is also the advantage of eliminating those characteristics that are undesirable

Disadvantages of genetic engineering in agriculture

There are however also the cons of genetic engineering which in agriculture they are quite many. One is that the despite not buying pesticides more fertilizers will be required and also as the plants grow equipments that are needed to crop these plants have to be modified. Genetic engineering also ignores certain steps in like pollination thereby disrupting the ecosystem. There is also the danger of pollution. Farmers also fear that any gene that is used for  herbicide resistance may spread to other crops  and create  more dangerous weed leading them to use more money in farming.

Benefits and risks of genetic engineering


Genetic engineering has also been applied in medicine  where it has been used to try and cure diseases llike cancer. This is done by trying to replace those genes that are faulty with others that are working perfectly.

Pros of genetic engineering

It has tried to cure certain diseases and has lead to the elimination of faulty genes and replacing them with better ones. It also has been able to cure visual impairment.

Cons of genetic engineering

The gene therapy has a lot of dangers and has not been used widely. It can lead to other dangers in one’s life.

Genetic engineering and society

Most people in the society have been against genetic engineering claiming it is trying to change what is already there. This is because they have not seen the results that had been promised there before but scientists are not giving up because they continue advancing with technology.

Genetic engineering will be accepted if its benefits are more than its risks since nothing can be perfect.

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Pros and Cons of Genetic Engineering

Genetic engineering entails manipulating an organism’s gene indirectly using techniques such as molecular cloning to alter the nature and structure of genes. It can change an organism’s characteristics through DNA manipulation. Human beings ought to consider the pros and cons of genetic engineering before using it.

Pros of Genetic Engineering

First, it leads to better growth rate, taste and nutrition of crops like tomatoes, potatoes, rice and soybean. Genetically engineering produces new variants with increased yield and improved nutritional qualities. Genetically engineered crops can survive on lands that are currently not suited for cultivation. Genetic manipulation can be carried out to meliorate the nutritional value and increase the rate of growth of crops. The science of genetic engineering, also referred to as foods Biotechnology, nay be utilized to ameliorate the taste of food.

Genetic engineering produces crops which are pest-resistant and have a longer shelf life. Engineered seeds can endure harsh climatic conditions and are resistant to pests. At-DBF2, a plant gene, can be inserted into tobacco and tomato cells to increase their survival in harsh climatic and soil conditions. Biotechnology may be utilized to slow down food spoilage process. This results in a greater shelf life of vegetables and fruits.

Genetic modification can be utilized to produce entirely new foods. In food, genetic engineering is able to produce completely new substances like proteins and other nutrients. Modification of gene in foods can increase their medicinal value. This makes home-produced edible vaccines.

Another advantage is the modification of genetic traits in human beings. Human genetic engineering science modifies human beings genotypes before birth. This process can be utilized to manipulate some traits in people. Genetic engineering can be employed to suppress negative traits while boosting positive ones. Positive genetic engineering is concerned with the enhancement of positive individual traits. This includes increasing human capacity or longevity. Conversely, negative genetic engineering is concerned with the quelling of negative human traits such as some genetic diseases.

Genetic engineering can in the modification of human DNA. If discovered, genes responsible for particular human qualities can be inserted into the genotypes of other humans by artificial means. This brings about desirable functional and structural changes in such individuals.

Cons of Genetic Engineering

Genetic Engineering has some cons as well. One, it may impede nutritional value. Genetic engineering in food contaminates crop genes. Crops that are genetically engineered may take the place of natural weeds and thus harm natural plants. Unwanted genetic mutations may lead to crop allergies.

Another disadvantage of genetic engineering is that it may introduce harmful pathogens. Horizontal gene transfer may bring about new pathogens. While it raises plant’s immunity to diseases, the resistant genes may be transferred to harmful pathogens.

Genetic engineering may result in genetic defects. In humans, gene therapy can have various side effects. In an attempt to treat one defect, the therapy may result in another. Isolating cells associated with a single trait is very difficult since each cell influences numerous characteristics.

Genetic engineering is detrimental to genetic diversity. It can hamper human diversity. Cloning may have negative consequences to individuality. What is more, such procedures may not be within the means of everyone. This makes gene therapy unfeasible for the commoner.

As seen in the discussion, genetic engineering is beneficial but it manipulates the natural. It alters what is natural to produce completely new “creatures”. Human beings ought to consider the pros and cons of genetic engineering before using it.


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