Production of a homozygous mutant embryonic stem cell line (double knockout).

Abstract excerpt

Homozygous mutant embryonic stem (ES) cell lines have proven very useful in studying gene and protein function, and there are several reasons why this system might be preferred. Because many genes express their phenotype at the level of individual cells, using these cell lines eliminates the time and expense of producing a mutant animal. They can be isolated directly from a heterozygous mutant cell line without...

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