Genetically engineered chickens have been successfully developed in the UK
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Last Update: 2001-10-08
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Source: Internet
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Author: User
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Introduction: experts from the Roslin Research Institute in Edinburgh, UK, have successfully bred a batch of transgenic chickens by genetic engineering methods The "grandson" of one rooster has already carried foreign genes The results of this study show that the implanted foreign genes can be inherited This is an important step towards using genetic engineering eggs to obtain valuable drugs A transgenic hen can produce more than 200 eggs every year, and the drug content in the eggs is also considerable To show that chickens already have foreign DNA, scientists then attach the lysozyme gene to another gene that makes beta galactoside β - galactoside is an enzyme produced by E coli, but can not be produced by chicken The results of β - galactoside staining showed that the cells obtained from chicks could produce this enzyme after reproduction in the laboratory, which indicated that chicks had foreign genetic genes.
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