hypermorph

hypermorph /hy·per·morph/ (hi´per-morf)

1. a person who is tall but of low sitting height.

2. a mutant gene that shows an increase in the activity it influences.hypermor´phic

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hypermorph

[hī′pərmôrf′]

Etymology: Gk, hyper + morphe, form

1 a person whose arms and legs are disproportionately long in relation to the trunk, and whose sitting height is disproportionately short compared to the standing height.

2 a mutant allele that has an increased effect on the expression of a trait. Compare amorph, antimorph, hypomorph.