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Genetic Engeneering in Humans

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Introduction

Advantages of Genetic Engineering in Humans The genetic engineering of animals is one of the biggest leaps forward in science and human history; it poses many advantages and disadvantages and has been met with mixed opinions from a number of organisations. Genetic engineering allows us to choose certain characteristics about people and can be used to prevent certain hereditary illnesses usually passed down by carrier parents to their babies, with more understanding and research it can be used to prevent more and more illnesses (1) + (4) Genetic Engineering in the form of Gene Therapy can be used to cure hereditary illnesses like cystic fibrosis and sickle cell anemia by repairing or replacing missing genes in people, it is less dangerous than using infective agents like adenoviruses as vectors because the genes can be inserted into liposome's which are much safer and cause less chance of failure. Cancer is another illness which can be treated with Gene therapy because then the treatment will only target the cancer cells and not damage any other cells like the radiation and chemical treatments do today, this makes the treatment of cancer much safer. ...read more.

Middle

With genetic engineering, parents will be able to choose the characteristics of their children such as; eye colour, hair colour, talents and traits and create their own image of a perfect child. Not entirely unlike sperm and eggs from attractive and intelligent people being sold today, genetic engineering would just ensure that the result would meet the wishes of the parents which could also give the child a better quality of life if he/she had previously had an undesirable genetic trait which would have caused problems later in life. (1) Religious organisations like the Roman Catholic Church oppose all aspects of genetic engineering, they believe that God created all creatures on Earth and every species has the right to preserve its genetic integrity and by altering it you are messing with Gods work.(2) Christians argue the dangers posed by genetic engineering are not yet known and deaths may occur from accidents which could have been avoided. Some groups supporting genetic engineering have stated that selective breeding is not opposed by religion so why is genetic engineering, which is similar in the way that it essentially tweaks DNA to create a modified product.(4) ...read more.

Conclusion

For example, in the base sequence GAATTC, the restriction enzyme that cuts this site cleaves the DNA between the "G" and the "A" on each complementary strand, thus leaving the overhangs of AATT & TTAA respectively Over 200 different restriction enzyme have been isolated that cut at many different specific DNA sequences. They are all QUITE SPECIFIC and this specificity is the KEY to their use. Restriction enzymes that cut at 4, 5, 6, 8, 9, and 11 base pair palindrome sites have been found. It follows that the MORE BASE PAIRS in the palindrome site the LESS LIKELY a site is to exist statistically. That is, a 4-base-cutting restriction enzyme cuts the same DNA many more times than an 8-base-cutter does. The odd numbered cutting sites are not true DNA palindromes, in that the central base pair reads different in the two directions. For example AA?TT is a 5 base pair cutting site, where the ? = a number of different bases. Bibiography http://www.ifgene.org/proscons.htm - (1) http://www.agbioworld.org/biotech-info/religion/lesseps.html - (2) Remaking Eden: Lee M Silver - (3) http://www.geneticengineering.org/isgood/default.htm - (4) Daily Mirror 3rd December 2007 pg 24 - (5) http://news.bbc.co.uk/1/hi/sci/tech/1185972.stm http://grumpus.blog.co.uk/2007/05/24/bbc_news_a_level_biology_easy_peasy~2327492 ?? ?? ?? ?? Antony Rickhuss ...read more.

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