• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Cloning has been going on in the natural world for thousands of years.

Extracts from this document...

Introduction

Cloning Cloning has been going on in the natural world for thousands of years. A clone is simply one living thing made from another, leading to two organisms with the same set of genes. In this sense, identical twins are clones because they have identical DNA. Sometimes, plants are self-pollinated, producing seeds and eventually more plants with the same genetic code. When earthworms are cut in half, they regenerate the missing parts of their bodies, leading to two worms with the same set of genes. Any organism that reproduces asexually produces a clone. However, the ability to intentionally create a clone in the animal kingdom by working on the cellular level is a very recent development. From sheep to monkeys, scientists have made great strides in the past few years in cloning mammals. The birth of these transgender animals provides a major stepping-stone for the cloning of humans (Rantala 26). Now groups say they are ready to clone a human being. Controversy over their plans run high, but scientists believe the technology for human cloning, at least a limited type of cloning for now, is available. A revolution in reproductive biology is now taking place which provides the technical means for cloning humans. ...read more.

Middle

Some gay-rights advocates even argue that should sexual preference prove to have a biological basis, and should genetic screening lead to terminations of hay embryos, homosexuals would have an obligation to produce gay children though cloning. Lesbians would have the chance to give birth with no male involved at all; one woman could contribute the ovum, though other DNA. It might lead to an understanding of the mechanisms by which a morula (a mass of cells that has developed from a blastula attaches itself to the wall of the uterus.) This might generate new, effective contraceptives that exhibit very few side effects. The rapid growth of human morula is similar to the rate at which cancer cells propagate. Cancer researchers believe that if a method is found to stop the division of a human ovum, then a technique for terminating the growth of a cancer might be found (Bosch 1574). Treatments for damage to the brain or nervous system might be possible due to cloning. Damaged nerve tissue in adults does not regenerate. However, stem cells might be capable of repairing the tissue. Because of the large number of stem cells required, human embryo cloning would be required. ...read more.

Conclusion

Obviously a person who cloned and then trained an army of human drones would be acting unethically. However, simply creating another human being through the cloning process does not present an ethical or moral dilemma, assuming that the cloning process produces no abnormalities, but human cloning is not apt to happen soon , if ever. Why not? There is no need to clone humans to provide answers to the questions that are central to research. Human cloning would relate primarily to producing more people. Reproduction by cloning is an inappropriate means to reproduce more mice, monkeys, sheep, or humans because species survive through genetic heterogeneity. Sexual reproduction ensures diversity, where as, in contrast, cloning, asexual reproduction, promotes sameness among individuals. Most of us treasure uniqueness, especially among family and friends, and survival of species (Miller 145). Thus cloning, although a useful tool for experimental biologists is not an appropriate means of reproduction. Efforts to clone humans are not mainstream in the studies of biological research mainly because attempts would be costly and difficult. Human cloning, however, does present a challenge and some people respond to technical challenges. Therefore, it will not be surprising if scientists' actually attempt to clone a human. But he or she will add little or nothing to the welfare of humans by cloning an individual. 1 Stotler ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Genetics, Evolution & Biodiversity section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Genetics, Evolution & Biodiversity essays

  1. Marked by a teacher

    An Investigation into the Mitotic Nuclear Division of Allium Sativum Root Tip Cells, and ...

    5 star(s)

    It is for this reason that conventional handheld test tube clamps have been provided, to reduce the need of physical contact with the glass. The risk of accident due to physical obstructions in the laboratory. In the event of a sudden or unexpected spillage, or other occurrence, it is of

  2. Marked by a teacher

    Human Cloning Assignment

    4 star(s)

    with the gradual damage to DNA over time, are present in Dolly or other animals cloned with this method. What it needs in three steps. - The DNA to be copied is dissolved in buffer and mixed with a pair of primers, which are short lengths of single-stranded DNA complimentry to the end of the DNA strand.

  1. The Biology of Autistic Spectrum Disorder and the Social Implications

    It could be that sometimes parents are more afraid of the unknown, and once the unknown becomes clear can then the fear turn into strength, which could result in a drive for success in the provisions of education and life skills for their child.

  2. Recombinant DNA, genetically engineered DNA prepared in vitro by cutting up DNA molecules and ...

    The substitution results in a change in the amino acid coded by the gene (see Biochemistry). When the DNA is transcribed, ultimately a different amino acid is produced; in this case, a valine is substituted for a glycine.

  1. Cell Theory - Discuss the theory that living organisms are composed of cells.

    Phytoplankton -->zooplankton --> salmon -->orca 3) Leaf -->leafcutter ant -->army ant -->anteater 4.1.5 Describe what is meant by a food web. Food web - a representation of the various paths of energy flow through populations in the community 4.1.6 Define trophic level. Trophic level - position in the food chain, determined by the number of energy-transfer

  2. patterns of growth and development

    They can get a object without having it being put into their hand. They enjoy banging toys on tables, crumpling paper, splashing in the bath and playing with their toes when on their backs. They use the whole hand to hole something.

  1. DNA cloning or gene cloning

    Stem cells can also be used to get organs for organ transplants. Genetically modified (GM) foods Cloning can also be used to genetically modify food crops so that they produce more seeds and better seeds and that don't get diseases.

  2. Oncogenes are genes that cause cancer.

    How then can one explain the wide occurrence of oncogenes in retroviruses and their apparent conservation in the course of evolution? A decade of investigation has furnished a surprising answer. Retrovirus oncogenes are merely cellular genes in another guise, passengers acquired from the animals in which the viruses replicate.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work