Phenotypic Analysis of Dominant Mutant Effects in Mice.

Abstract excerpt

Dominant effects of a mutation may show up at any time during a mutational analysis, including during the early stages of an embryonic stem (ES) cell gene targeting experiment. Here, we discuss the mechanisms of dominant and semidominant effects and how they might appear if they show up in heterozygous ES cells, in ES cell chimeras, or in heterozygous progeny of chimeras. Similarly, dominant effects may be seen...

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