Medical Definition of Dominant lethal trait

1. Trait, expressed in the phenotype if present in the genotype, that precludes having descendants. All such cases are necessarily sporadic and must represent new mutations as the usual methods of classical genetics provide no means of demonstrating any genetic component whatsoever, except for tenuous arguments such as advanced paternal age. Molecular biology may help although the methods may be tedious; if there is an epistatic gene that may mask the trait, the logic is more tractable, though complex. (05 Mar 2000)

Lexicographical Neighbors of Dominant Lethal Trait

dominance hierarchy
dominance measure
dominance threshold number
dominances
dominancies
dominancy
dominand
dominant
dominant character
dominant eye
dominant frequency
dominant gene
dominant hemisphere
dominant idea
dominant inheritance
dominant lethal trait (current term)
dominant oncogene
dominant seventh
dominant seventh chord
dominant seventh chords
dominant species
dominant trait
dominantly
dominantly inherited Levi's disease
dominants
dominate
dominated
dominates
dominateth
dominating

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