Neomorph redirects here. It is also one of the post-human types of persons in the novel Eon by Greg Bear.1946 Nobel Prize winner
Hermann J. Muller (1890-1967) coined the terms
amorph, hypomorph, hypermorph, antimorph and
neomorph to classify mutations based on their behaviour in various
genetic situations. These classifications are still widely used in
Drosophila genetics to describe mutations. For a more general description of mutations, see
mutation, and for a discussion of allele interactions, see
dominance relationship.
Key: In the following sections, alleles are referred to as +=wildtype, m=mutant, Df=gene deletion, Dp=gene duplication. Phenotypes are compared with '>', meaning 'phenotype is more severe than'