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

recombinant DNA

Extracts from this document...


AS biology course work on recombinant DNA Brief description of RDNA Recombinant DNA is the general name for taking a piece of one DNA, and and combining it with another strand of DNA. Thus, the name recombinant Recombinant DNA is also sometimes referred to as "chimera." By combining two or more different strands of DNA, scientists are able to create a new strand of DNA. The most common recombinant process involves combining the DNA of two different organisms. The Recombinant DNA technique was engineered by Stanley Norman Cohen and Herbert Boyer in 1973. They published their findings in a 1974 paper entitled "Construction of Biologically Functional Bacterial Plasmids in vitro", which described a technique to isolate and amplify genes or DNA segments and insert them into another cell with precision, creating a transgenic bacterium. Recombinant DNA technology was made possible by the discovery of restriction endonucleases by Werner Arber, Daniel Nathans, and Hamilton Smith, for which they received the 1978 Nobel Prize in Medicine. (reference:http://en.wikipedia.org/wiki/Recombinant_DNA , info taken on 25 january 2008. ...read more.


DNA fingerprinting identifies similarities in DNA and can indicate evolutionary relationships, paternal or maternal identity, or someone's presence at a crime scene. Gene theraphy- is when a human gene is used to replace a missing defective gene in the humab. Cells can be altered by insertion of genes inside the body or by genes outside the body. Treatments have been developed using gene therapy for diseases like severe combined immunodeficiency and Cystic Fibrosis. How does recombinant dna affect the environment? Better crops mean that people have a large supply of food to sell and it keeps the economy functioning successfully also the large supply of food can be used to aid world hunger in poorer parts of the world as they are now drought and heat resistant. People are being protected from genetic diseases such as cystic fibrosis. Insulin can now be produced at a faster rate and much more cheaply, diabetic patients can now be treated much more affectively. Genetic technology has now advanced to help people with diseases such as cystic fibrosis ways new scientist shows how the different people feel and what its actually about. ...read more.


in New Fairfield, Connecticut Others argue that germ-line therapy would have a variety of harmful biological and social consequences, such as reducing the size of the human gene pool, or encouraging a 'black market' in therapy that would make children taller or brighter. And, in a society where germ-line therapy was carried out, 'people who are less than perfect would be steadily more disadvantaged, and this would tend to push people further into the realm of the unacceptable', says John Habgood, the Archbishop of York. (reference to- issue 1925 of New Scientist magazine, 14 May 1994, page 14. Information accessed at 25/01/08) Scientist now can create living bacterium: "Scientists have made a major step forward in creating life in the laboratory as researchers announce they have rebuilt a living bacterium from four bottles of chemicals. The scientists took the natural bacterium and painstakingly replaced its genetic structure, or genome, with DNA stitched together from chemicals. Eventually they had recreated all the genes that had been in the natural bacterium, effectively turning it into an identical but artificial organism."(Reference: http://www.dailymail.co.uk/pages/dmsearch/overture.html?in_page_id=711&in_start_number=0&in_query=recombinant+dna&in_restriction=&in_pub=0&in_order_by=date, scroll down on page and click news 3 with the head line- Scientists create artificial life in the laboratory - from four bottles of chemicals ). ...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

Here's what a star student thought of this essay

3 star(s)

Response to the question

Response to the question is basic. The introduction is good, but poorly explains what re-combinant DNA is, and the process by which it comes about, the real science behind the technique is not explained, therefore it makes it hard for ...

Read full review

Response to the question

Response to the question is basic. The introduction is good, but poorly explains what re-combinant DNA is, and the process by which it comes about, the real science behind the technique is not explained, therefore it makes it hard for the candidate to explain the uses of this type of DNA. Main body of the text examines a few uses, but problems with spelling due to rushing and only basic examinations of the different uses means that the level of this essay remains basic in terminology. Clear enough response to the question that is organised okay, but no conclusion.

Level of analysis

Although the student tries to use their own knowledge and an internet source, recombinant DNA is not explained very well. Also, the scientific terms they are are not very advanced. Do not explain the process of recombinant DNA into plasmids, which would be a much better way of leading to a definition of recombinant DNA. No conclusion, although the student does examine a range of different uses for re-combinant DNA and how it will affect the world. Could have been a lot more in depth and explain the process a lot better to reach a valid conclusion on the uses of recombinant DNA. Does not reference very well and should not copy and paste information from sources but put the source into their own words.

Quality of writing

Forgets to use capitals at the start of a sentence in some places. Problems with spelling in a few places, probably due to fast typing and then carelessness to check over the work again before submission. Grammar and punctuation remain largely okay apart from the missing capital letters.

Did you find this review helpful? Join our team of reviewers and help other students learn

Reviewed by skatealexia 19/03/2012

Read less
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

    Revision notes - origins of life on Earth, chemistry of life

    5 star(s)

    any other creature * Genetic technology - gives people opportunity to 'play god' * Modern technology looks at sequence of proteins/DNA btw organisms to determine extent of biological/evolutionary r/ships; prior - classification systems looked at structural characteristics � not always correct 8.4.3 Further developments in our knowledge of present day

  2. Marked by a teacher

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

    5 star(s)

    This is where the concept of a null hypothesis is involved; in statistics, a null hypothesis is a hypothesis set up to be nullified or refuted in order to support an alternative hypothesis. When used, the null hypothesis is presumed true until statistical evidence in the form of a hypothesis test indicates otherwise.

  1. Marked by a teacher

    Nature vs. Nurture - And its affect on intelligence, personality, and behavior

    4 star(s)

    "Hereditary instructions carried by the chromosomes influence development throughout life by affecting the sequence of growth, the timing of puberty, and the course of aging." (Introduction to Psychology, Pg. 379) The timing of these developments all affect how our personality develops.

  2. Marked by a teacher

    Human Cloning Assignment

    4 star(s)

    Assuming nothing goes wrong, an exact copy of the donor animal is born. This newborn sheep has all of the same characteristics of a normal newborn sheep. It has yet to be seen if any adverse effects, such as a higher risk of cancer or other genetic diseases that occur

  1. Edexcel Level 3 Extended Project - Should Embyonic Stem Cell Research be applied to ...

    This is the big question the people against embryonic stem cells ask the supporters. And it's a question which cannot be easily answered. A big type of adult stem cell which is proving very popular lately is umbilical cord blood.

  2. Chromosomes and DNA

    * The expected 50:50 ratio of males and females only shows up when large numbers of fertilisations are involved. The composition of DNA DNA stands for deoxyribonucleic acid. Chromosomes are made of DNA. DNA is a very large molecule (polymer)

  1. Parkinsons Disease

    Some other symptoms may develop due to problems with the way affected brain cells and nerves control the muscles. These include: * Fewer facial expressions such as smiling or frowning. Less blinking. * Difficulty with fine movements such as tying shoe laces or buttoning shirts.

  2. Cystic Fibrosis

    Another problem facing scientists is that they need to find out how long treatment should last until another treatment is needed; the parent cells that produce the defective gene need to be identified and scientist need to find out the life expectancy of the affected lung cells.

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