Dolly and the New Age of Cloning

Dolly and the New Age of Cloning

Length: 625 words (1.8 double-spaced pages)

Rating: Excellent

Open Document

Essay Preview

More ↓
Dolly and the New Age of Cloning

The concept of cloning is not new. Organisms ranging from microbes (for example bacteria) and animals (such as aphids and even certain species of shrimp and snails) have practiced asexual reproduction for millions of years, where the offspring are exact duplicates of the parents. It is also not uncommon to encounter identical twins among the more complex life forms like mammals. Twins are in essence clones as they share the same genetic blueprint. What then is so significant about Dolly?

In the research paper published by I. Wilmut, W.A. Ritchie, J. McWhir and K.H.S. Campbell (1), Dolly was described as the first known mammal to be cloned by nuclear transfer from a cultured cell line. This technique is revolutionary as it dispelled a dogma in biology that upholds the notion of differentiated cells, being highly specialized, are irreversibly altered to an extent that would render them unable to inter-convert between cell forms (i.e a lymphocyte is not able to produce a nerve cell and vice versa). Dolly is living proof that a differentiated cell, such as one in the udder of sheep, has not only the potential of creating other tissue forms, but the entire living being. The evidence gathered from Dolly also went one step further to establish that organisms produced in such a way were not disadvantaged in their general physiological or reproductive function.

Thus the new age of cloning was born with Dolly as its flagship. The success of Dr Ian Wilmut and his team in creating Dolly sparked global interest. This has greatly benefitted science as it has accelerated the rate at which knowledge is assimilated in the field of cloning. Many attempts have been to clone other mammals (for example cows or pigs). However they do not always yield fruitful results. Dolly can be considered to be a success among 277 failures. Indeed of the 277 oocytes used in the experiment, only one yielded a success. The techniques used in cloning would have to be refined before it can be universally applied. We have now uncovered other interesting facts about Dolly and cloning. For example, Dolly is considered to be "older" than her natural counterparts by a measure of the length of her telomeres that was found to be relatively shorter. However Advanced Cell Technology (ACT) of Worcester, Massachusetts, using different techniques than Dr Ian Wilmut and his team, produced calves that were found to have longer telomeres (2).

How to Cite this Page

MLA Citation:
"Dolly and the New Age of Cloning." 15 Nov 2019

Need Writing Help?

Get feedback on grammar, clarity, concision and logic instantly.

Check your paper »

Essay on History of Cloning

- Cloning is defined as the different processes for duplicating biological materials such as tissues and new life forms (“Cloning Fact Sheet” 2009). The cloning of human tissue should be allowed because the fields of medicine benefit from it; however, the full cloning of humans is a mockery of life because it creates a population of people who will not evolve or adapt to changes in the environment. Therefore, the government should financially support the research of therapeutic cloning while condemning the act of reproductive human cloning....   [tags: Cloning]

Research Papers
1323 words (3.8 pages)

Benefits of Cloning Essay

- Cloning is the process of making a genetically identical organism through the use of a DNA sample. After the first cloned sheep dolly was created, many people were keen in knowing more about cloning and its benefit to society. Additionally, many of us want to know the pros and con the disadvantages and possible risks it may have on society and mankind. Most importantly, there are three types of cloning, therapeutic, reproductive, and embryonic cloning. These types of cloning are all ways of scientists trying to find ways to produce a living organism or organs....   [tags: Cloning]

Research Papers
726 words (2.1 pages)

Two of Us: Cloning Essay

- Have you ever wondered what it would be like if you had twin or even if you had a clone. If you had an illness like diabetes, have you ever wondered what it would be like if you did not. Cloning is the creation of an organism that is an exact genetic copy of another. The first successful clone was in 1997 when scientist Edinburgh cloned Dolly the sheep. She was the first animal to be cloned with an adult somatic cell by using the process of nuclear transfer. She was born on July 5 1996, lived to the age of six and died after being diagnosed with lung disease called Jaagsiekte....   [tags: Cloning]

Research Papers
1483 words (4.2 pages)

The Cloning Debate On Cloning Essay

- The Cloning Debate Cloning is a scientific topic that has people divided for or against it. There have been many experiments that have been conducted proving that cloning is possible. One of the main successful experiments dealing with cloning was with lambs; thus Dolly was created. However, there are no successful experiments in cloning humans. Even, “Dr. Wilmut, Dolly 's creator, thinks cloning people is unlikely (Medicine 's Brave New World; 2001, p76, 16p, 1 Black and White Photograph, 1 Diagram)”....   [tags: Cloning, Human, Robert Lanza, Religion]

Research Papers
1032 words (2.9 pages)

The Ethics of Human Cloning Essay

- Human cloning is separated into two major categories; reproductive cloning, which uses cloning technology to create a human embryo that will produce an entire human, and therapeutic, which adopt cloning into field of medical practices to find a cure for many diseases (Kass). Reproductive cloning requires a somatic cell, a DNA-less egg, and a surrogate mother; as a result, it creates a new individual with the same genome, or genetic coding. The idea originated in Germany in 1938, but the first successful research was not conducted until 1967 by scientist John Gurdon, who cloned a tadpole with a frog’s somatic cell....   [tags: human cloning]

Research Papers
1288 words (3.7 pages)

The Controversy Of Cloning And Genetic Engineering Essay

- The Cloning Controversy With the constant developments in technology, cloning is widely talked about and one topic causing a great public response around the globe. Advocates believe cloning and genetic engineering will be the answer to most of the diseases in the future and ultimately creating a stronger human being. In contrast, people against cloning view it as playing god. Cloning is highly unethical because people could lose their identities and it is as if we are taking nature into our own hands by cloning animals or humans....   [tags: Cloning, Human, Human cloning, Primate]

Research Papers
974 words (2.8 pages)

Should Cloning Be More Successful? Essay

- Cloning is a very odd subject to think about. When we think of cloning we think of scientists making identical copies of us, almost like twins, but that is far from the truth of how it really happens. It’s also not done by popping yourself into a machine and on the other end comes out another you. There are several different techniques of cloning, such as Nuclear Transfer, Artificial Embryo Twinning Gene Cloning, and The Honolulu Technique. Cloning has been more successful in other animal species than it has been with humans....   [tags: Cloning, Genetics, Embryo, DNA]

Research Papers
1665 words (4.8 pages)

Should Cloning Be Allowed For Medical Advancement? Essay

- Imagine a world with unlimited organs ready for transplant or where spinal cords can be repaired with matching cells. Where infertile couples still have the option of passing down their genes and cures for diseases can be found with less risk. All of these are reasons why cloning, including human cloning, should be allowed for medical advancement. In 1997, the world exploded with news of Dolly, the first successfully cloned sheep from an adult cell. Since then, the concept of human cloning and cloning for human advantage has been under heavy fire in regards to ethics and probability....   [tags: Cloning, Genetics, Gene, DNA]

Research Papers
1281 words (3.7 pages)

Genetic Cloning Essay example

- Cloning and the ability to manipulate and modify DNA has increased immensely in recent years. The field of genetic reproduction is creating a variety of unknown social and ethical consequences that are particular to our present time. Such consequences, although unknown now, of the manipulation of nature at such a primary biological level will have disastrous effects on the generations of the future. Cloning as a new science, concerns itself with the replication of organisms through asexual scientific method creating exact replications of the parent cell....   [tags: Cloning Essays]

Research Papers
1921 words (5.5 pages)

Essay on Cloning Humans

- Cloning Humans Ian Wilmut’s foray into cloning Dolly has proved to be an appetizing entrée to mankind, with the next step being the cloning of endangered species, and eventually, humans. Although his team of researchers had qualified to the public that it is unethical to clone humans1, the very prospect of being able to replicate creatures of our own kind is nevertheless enticing. Think of all the possible benefits that make many scientists prepared to cross those ethical boundaries: Firstly, couples who have tried a long time for identical twins, triplets (or even quintuplets!) may now be able to have them by producing clones from a single embryonic cell....   [tags: Genetic Engineering Cloning Essays]

Research Papers
709 words (2 pages)

Related Searches

This in theory would make them younger and hence have a longer life span. However, only time can determine whether this theory holds true.

Scientists have also discovered that Dolly is not a perfect clone (3). Dr Eric Schon of Columbia University in a collaborated effort with Dr Ian Wilmut found Dolly's mitochondrial deoxyribonucleic acid (DNA) contained thirty-seven genes that were different from those found in her donor. It is possible these genes came from Dolly's surrogate parent (the Blackface Ewe), whose egg housed most of the mitochondrion that constituted the embryo.

Cloning is in its preliminary stages and there is a lot that has yet to be learnt about it. The methods used in cloning would have to be simplified and made more accurate before any of its applications can be practiced on a large scale. Dolly has become the icon of cloning that has catalysed research in this burgeoning field. Keeping the image of Dolly at the back of their minds, scientists are greatly encouraged and inspired to discover all they can about cloning and develop this area to its fullest potential.

(1) I. Wilmut, W.A. Ritchie, J. McWhir & K.H.S. Campbell.,Nature Vol. 380 p 64-66
(2) C. Tenove., New Scientist, 6th May 2000
(3) P. Cohen., New Scientist, 4th September 1999
Return to