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

The Use of Recombinant DNA Technology

Extracts from this document...

Introduction

The Use of Recombinant DNA Technology Recombinant DNA technology is the idea, which has been realized as well, to cut DNA with the help of restriction enzymes from two different sources and then join bits of the DNA with the help of DNA ligase back together, to get a use out of this recombined DNA. Recombinant DNA technology is closely linked to Genetic Modification. As there are three ways to use genetically modification, recombinant DNA technology deals with the idea to insert a foreign gene into a DNA of a host. The other two methods are to either alter an existing and active gene in the host DNA or to completely switch it of. The idea behind introducing different DNA into an already existing DNA is to get from the bacteria or organism a different effect. As certain sequences of the DNA, which are called genes code for certain proteins regulate the protein production of the host DNA. To realize this from the theory into real life the theory needs the use of recombinant DNA technology. Everything starts with the DNA and its sequences. As scientists have studied what certain proteins do, they followed the way back they came from. A protein is formed by amino acids, which mRNA is coding for. ...read more.

Middle

As now a plasmid is taken and is cut with the same restriction enzyme then the DNA sequence is going to have the same sticky ends. To be able to recognize later on the plasmid, which has been prepared the plasmid carriers two genes inside itself. These genes inside the plasmid make the bacteria resistant against the antibiotics ampicillin and tetracycline. A recognition sequence lies within the tetracycline gene, where the restriction enzyme made a cut. The cut plasmid and sequence of DNA are put together. Naturally the complementary sticky ends (as mentioned before same restriction enzyme) are attracted to each other and then bonded by adding the enzyme DNA ligase. The recombinant plasmid is introduced into bacterial cells, by just adding the DNA to the bacterial, which picks it up through the terms of transformation. From this point on cloning of the ``new�� plasmid starts as the bacteria is reproducing. To actually now be able to recognize the recombinant plasmid in the bacteria from the other bacteria, because not all of the bacteria picked the plasmid up a copy is taken from the bacteria cultures. The original culture is now tested on tetracycline. As mentioned above the tetracycline resistant gene has been taken apart by restriction enzyme at our new plasmid, because a recognition side lied within it. ...read more.

Conclusion

into the zeprafish genome. The protein is a natural produced green bioluminescence from a jellyfish. The fish is as well able to fertilize. At first the experiment was for developing a fish detecting pollution, but already in 2003 the trademarked protected fish called ``GloFish�� went on the Taiwan market for $18.60 each. In December 2003 the fish was allowed to be sold in the US as well, as the firm of GloFish made various experiments and there was and is apparently no danger from a fish, which contains recombinant DNA (statement of the Glofish firm). Until now the fish is not allowed in Europe, because it is containing recombinant DNA or it is genetically modified. Overall Recombinant DNA Technology is a great way to discover a lot of things, because there is just so much to actually experiment with. My opinion is that the development of this technology should not stop. Scientist should be allowed to research for things that could be beneficial to the human kind, but everything has to be controlled and serious. No messing around with genes, like I think the GloFish is. Sources http://learn.genetics.utah.edu/units/basics/print-and-go/gel_electro.cfm http://academic.brooklyn.cuny.edu/biology/bio4fv/page/genetic-engin/restriction%20enzyme.html http://www.urdugame.com/the-glofish/ "Troubled waters: fluorescent fish spark GM row" by A. Gumbel, May 4th, The Independent, London, England ``Biology for the IB DIPLOMA�� Chris Clegg 2007, fist published in 2007 by Hodder Murray ``Senior Biology 1�� 2008 Student Workbook, Richard Allan 2007, published by BIOZONE International Ltd Word count: 1407 ?? ?? ?? ?? Lucas Schumacher 26/02/2008 ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our International Baccalaureate Biology 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 International Baccalaureate Biology essays

  1. IVF reproductive technology

    When an embryo has taken, the remaining embryos are no longer needed. They are usually thrown away. This has caused much controversy. Many people argue weather it is right to simply dispose of something that one day could become a human being.

  2. cell theory summary

    There is nothing supernatural about the emergent properties rather it is simply the combination of the parts that results in new properties being shown. Emergence and reductionism 2 The approach of the physical sciences is to reduce an inanimate phenomenon to its constituent parts and that knowledge of these will explain the phenomena as a whole.

  1. Molecular Genetics: differentiating between various molecular databases

    > The order of the three species closer to the Guinea Pig is: Chinchilla, Porcupine and Hamster. > The order of the three species closer to the Porcupine is: Hamster, Chinchilla and Guinea Pig. > The order of the three species closer to the hamster is: Porcupine, Chinchilla and Guinea Pig.

  2. IB Genetic Unit Notes

    4.3.6: State that some genes are present on the X chromosome and absent from the shorter Y chromosome in humans. Some genes are present on the X chromosomes and absent from the shorter Y chromosome in humans. 4.3.7: Define sex linkage.

  1. Should Animals have the same rights as Humans? Both animals and humans exhibit behaviours ...

    This table shows a trend for the coil from the stimulus of the electric shock to decrease, then disappear after repeated administration of the shock. This is because the dog learns to associate the administration of the electric shock with receiving food.

  2. Research Question: Which method of DNA extraction (using a centrifuge or not) will yield ...

    Wait until all liquid has been filtered into the beaker. 6. (do only with trials involving centrifuge): centrifuge the solution for two minutes. Pour the supernatant fluid into a new graduated cylinder. 7. If centrifuge is not used, pour contents of the beaker into a graduated cylinder.

  1. Biology- Extended essay. For this research, I investigated the effects of DDT and ...

    the fish's environment and there direct response would be shown by the difference in their opercular movement. HYPOTHESIS As both our independent variables are toxic pollutants, the opercular response of the fish should show a similar effect, when placed under the tested concentrations of DDT and the Azo-Dye.

  2. Biology: Enzymes in the Dairy Industry

    In addition, proteases reduce allergic properties of cow milk products for infants, which produce healthier milk for them. Lactease is a glycoside hydrolase enzyme that decomposes lactose into its constituent sugars of galactose and glucose. Lactose intolerant individuals can result from insufficient production of lactase enzyme in the small intestine.

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