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Natural selection versus genetic engineering
Advantages and disadvantages of selective breeding
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More handpicked essays just for you.
Natural selection versus genetic engineering
Advantages and disadvantages of selective breeding
Don’t take our word for it - see why 10 million students trust us with their essay needs.
In what way?in plants These methods of selective breeding can potentially positively influence world food production in these ways improved quality of seed grains, increased levels of proteins in forage crops. It is also beneficial by helping the plants to be more resilient to insects and disease. They are also making them to have a capacity to grow on lands that are not suitable for them to grow in which can be a benefit and that way you can get more food and a variety of different plants even if it is in a land which can’t suit them. This show that it helps people ● What is the purpose of selective breeding?The purpose of selective breeding is to develop livestock whose desirable traits have strong heritable components and can therefore be propagated.
1 )artificial selection in current world? Answer : Artificial selection is the process of changing the characteristics of animals by artificial means. It was originally defined by Charles Darwin in contrast to the process of natural selection, in which the differential reproduction of organisms with certain traits is attributed to improved survival and reproductive ability in the natural habitat of the organism. For example, animal breeders are often able to change the characteristics of domestic animals by selecting for reproduction those individuals with the most desirable qualities such as speed in racehorses, milk production in cows, trail scenting in dogs.
Artificial selection and crossbreeding, both forms of genetic modification, have been used for centuries by scientists and farmers to obtain the desired traits of crops or animals (Kracht para 1). Moreover, no known risks have appeared from the consumption of GMOs or the genetic modification of crops.
According to Wikipedia, the official explanation for the term natural selection is: the differential survival and reproduction of individuals due to differences in phenotype. Artificial selection, on the other hand, is the process by which humans use animal breeding and plant breeding to selectively develop particular desired traits. These two were first fully expounded by Charles Darwin in On the Origin of Species, and are often put together for comparison. The two combined are now believed to be the main process that brings about evolution. In the following essay, I’m going to state out some differences by focusing on some pros and cons of both of them.
After reading through and reviewing the articles, one can see that there is a clear trend in the research being done that shows predominantly negative impacts selective breeding has on dogs. Health in selectively bred dogs is the top concern when dealing with ethics, due to the fact that in many cases lives are cut short and the quality of life is viewed as, to many, not worth living, which is seen as unfair to the dogs in an ethical viewpoint. From dog show judges to veterinarians, there are many known diseases in dogs that is the product of selective breeding, and although there have been attempt to fix these errors, the topic is still ongoing as hip dysplasia, breathing issues, and cardiac problems are still prevalent in certain purebreds.
One reason genetic engineering is good is because the world 's population is growing every day with almost 400,000 babies born each day, this calls for farms to grow the crops that can feed all of those people. In rural areas within Africa and Asia, the soil is barren. Without
Admiral William H. Mcraven addressed the 2014 graduating class at the University of Austin, Texas with more than eight thousand students in attendance. The address given by Adm. Mcraven touched the hearts of millions from all around the world by his inspirational message of how one person can change the world if they simply helped change the lives of ten others in their lifetime. I chose this speech for my rhetorical analysis because of the simple message it portrays, how helping a few can eventually help many. Adm. Mcraven’s address was especially effective for his audience, much due to how he relates to the students by reminiscing of the day he graduated from UT while providing advice for young college graduates preparing to begin their adult lives.
“In the genetic engineering process, scientists splice a specific gene that exhibits certain traits into a plant to create new artificial characteristics in organisms” (Burgaard; Streker). The resulting organism is considered GM, or genetically modified. The desired traits currently being practiced through genetic engineering are insect resistance, weed control, and improved nutritional content (Turner). The
The world of genetic engineering is becoming more abundant as technological advancements are made. Genetic engineering is the process of altering the genetic makeup of an organism by modifying segments of its DNA. Many of the foods we consume on a daily basis are genetically modified in order to protect crops from disease and increase harvest yields. Bacteria and animals are also a source of genetic modification. With genetic modification comes many ethical issues, and the most common question that arises is whether humans should be subject to genetic engineering.
Not all species consist of the same traits. Due to variations and adaptations that occur within a species, the characteristics of organisms may vary. These traits are inherited from an organism’s parents to the offspring and can mutate for future generations. Not all organisms survive long enough to reproduce. If an organism isn’t selected to have fit traits, their likelihood of survival is very slim.
Artificial selection demonstrates the reality of evolution by favoring certain traits to be reproduced. We, as humans, can choose which organisms able to reproduce. We are able to choose which crops are going to benefit us the most. Artificial selection is very helpful because it limits the number of crops that we don’t need and increase the crops that we do need. It allows us to choose the best of the best.
When we use selective breeding we lose the variety and unique characteristics of the animals that lack the trait. For instance, the layer hen that lacks the gene will still lay eggs, but its eggs will not be used for further production, where as its sisters who have the gene will continue the generations. Eventually the hen that can’t lay as much will be eradicated, therefore losing the variety. Genetic engineering interferes with Darwin’s theory of evolution because the animals are not free to mate and reproduce with whoever they want, or natural selection. Selective breeding interferes with evolution by altering the natural occurrences of mutations and microscopic changes.
A disadvantage of artificial selection is stated on, “Lee County Students”, saying that “However, genetic modification is highly controversial.” This is a disadvantage because artificial selection is not fully proven to work, and there are not many studies that show it works easily. Another disadvantage of artificial selection is an unexpected result. There are many different outcomes of artificial selection and can be a surprise to the organism and owner, stated on “Pros and Cons of Artificial Selection”. A final disadvantage of artificial selection is shortened life.
Mutation in children is not uncommon and it has caused many children to be robbed of the chances that healthy children are born with. A parent blessed with the gift of a healthy child wouldn’t be able to understand the relief genetic engineering would be able to bring to parents of children born with haemophilia, cystic fibrosis, or muscular dystrophy. Not only would choosing the best traits in an organism be good for humans, but for animals and plants. As previously mentioned, plants would benefit in the sense that they will be able to get immunity to pests and their own types of diseases. Animals would be able to make their prime state by modifying their DNA.
This essay will look more on the advantages and disadvantages of genetic engineering. Genetic engineering has some advantages. Firstly it allows for faster growth rate .Genetic engineering allows of plants or animals to be modified so their maturity can occur at a quicker pace outside of the normal growth conditions that are favourable without genetic changes as well .Secondly, it may also provide a cure for disease to improve health (apecsecadmin, 2014). Genetic engineering can be used to eradicate a number of incurable and deadly disease which could be done by identifying the genes that cause these disease, and manipulate them to prevent people from contracting these potentially deadly diseases.