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Biotechnology- What it means

كتبها biology lab ، في 26 أيار 2011 الساعة: 16:27 م

 Biotechnology is short for biological technology. Technology is the ability to better utilize our surroundings and the way we live. Biotechnology applies the same principles to living organisms. Biotechnology can be defined as the application of our knowledge and understanding of biology to meet practical needs. Today’s biotechnology is largely identified with applications in medicine and agriculture based on our knowledge of the genetic code of life, genetic engineering, DNA finger printing, molecular technology, genetically modified seed cultivation, vaccinations, biopesticides and biofertilisers. Fermentation, used in making bread, beer, and cheese, is an example of biotechnology. Modern biotechnology simply allows scientists to be more specific in their work and expand their areas of specialization.


Different types of crops have been produced using the molecular tools of biotechnology and are beginning to be utilized in agricultural systems all over the world.

Biotechnology has the potential to assist farmers in reducing on-farm chemical inputs and produce value-added commodities. Conversely, there are concerns about the use of biotechnology in agricultural systems including the possibility that it may lead to greater farmer dependence on the pr

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Green biotechnology

كتبها biology lab ، في 26 أيار 2011 الساعة: 16:21 م

Green biotechnology which is more commonly known as Plant Biotechnology is a rapidly expanding field within Modern biotechnology. It basically involves the introduction of foreign genes into economically important plant species, resulting in crop improvement and the production of novel products in plants. Use of environment friendly and cost effective alternatives to industrial chemicals such as bio fuels, bio fertilizers and bio pesticides are not only resulting in enhanced crop output, improvement in health and safety standards, these new products are also leading to less environment pollution and use of green technology. The ever increasing demand of agricultural produce has given new impetus to research in the field and has resulted in great benefits for farmers and users alike.

Today plant biotechnology encompasses the following main areas of research and application:

Plant tissue culture:
A technique that allows whole plants to be produced from minute amounts of plant parts like the roots, leaves or stems or even just a single plant cell under laboratory conditions. An advantage of tissue culture is rapid production of clean planting materials. Examples of tissue culture products in Kenya include banana, cassava, Irish potato, pyrethrum and citrus.

Plant genetic engineering:
The selective, deliberate transfer of beneficial gene(s) from one organism to another to create new improved crops, animals or materials. Examples of genetically engineered crops include cotton, maize, sweet potato, s

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midterm

كتبها biology lab ، في 11 أيار 2008 الساعة: 05:58 ص

midterm.doc

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Excersise 5

كتبها biology lab ، في 20 نيسان 2008 الساعة: 08:12 ص

866exercisev.doc

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exercise-4

كتبها biology lab ، في 1 نيسان 2008 الساعة: 07:53 ص

1207036432.doc

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excersiz2

كتبها biology lab ، في 23 آذار 2008 الساعة: 07:17 ص

 

9581206256752.doc

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Exercise-1

كتبها biology lab ، في 10 آذار 2008 الساعة: 09:12 ص

 

Exersie :

ex1.doc

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bioinformatics

كتبها biology lab ، في 25 شباط 2008 الساعة: 08:27 ص

 

 
·                     Useful Bioinformatics Online Resources
1-                NationalCenter for Biotechnology Information: http://www.ncbi.nlm.nih.gov
2.                  The ExPASy ( Ex pert P rotein A nalysis Sy stem): http://www.expasy.org/
3.                  European Molecular Biology Laboratory: www.ebi.ac.uk
4.                  Sequence Retrieval System (SRS): http://srs.ebi.ac.uk
5.                  GeneCards: http://www.genecards.org
6.                  Kyoto Encyclopedia of Genes and Genomes (KEGG): www.genome.ad.jp/kegg

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