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Information About Transgenic Organisms - Online Essay

Information About Transgenic Organisms

Transgenic Organism, plant, animal, or bacteria that has been genetically modified to contain a gene from a different species. The new gene is inherited by offspring in the same way as the organism's own genes. The transgenic condition is achieved by injecting the foreign gene into the fertilized egg or into embryonic cells. The injected gene becomes part of the host cell's deoxyribonucleic acid (DNA) within the chromosome and is then inherited by all the cells produced during embryonic development. It is thus present in all the cells of the resulting adult organism and is inherited by all its descendants.
This technique can be used to generate animals or plants that express genes ...

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specific gene can be expressed in all the cells of a transgenic organism and the effect on the organism's development and function can then be monitored. It is also possible to use transgenic procedures to produce animals in which a specific gene has been deactivated in all its body cells. Certain genetic disorders of humans can be studied with this technique in laboratory animals if the disease-associated gene occurs naturally in both humans and an appropriate study species, such as a mouse. In such human disorders, symptoms are caused by natural dysfunction of the gene. In the study animal the same gene can be deactivated or made dysfunctional, causing symptoms similar to those of the human disorder. Scrapie, a fatal disease of the brain in sheep and related to human Creutzfeldt-Jakob disease, has been studied this ...

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Information About Transgenic Organisms. (2004, May 23). Retrieved December 23, 2024, from http://www.essayworld.com/essays/Information-About-Transgenic-Organisms/8268

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Added: 5/23/2004 05:44:42 AM
Category: Science & Nature
Type: Premium Paper
Words: 329
Pages: 2

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