alleles

complete lof: amorph(ic) w -Increased dose of mutant: No change in phenotypeIncreased dose of wildtype: phenotype more wildtypepartial lof: hypomorph(ic)w apricotIncreased dose of mutant: phenotype more wildtypeIncreased dose of wildtype: phenotype more wildtypeTruth be known, geneticists take shortcuts (c.f. cis/trans test)The characterization of a mutant allele asa amorphic (null) vs. hypomorphicis generally made based only on a comparison ofthe homozygous mutant to the hemizygous mutant(and with the knowledge that the mutant is recessive):white X /white X vs. white X /Df(w)…potential pitfalls, but a good place to start