polymorphism

From ZooTerms (Dictionary of Invertebrate Zoology)
Revision as of 23:41, 13 September 2013 by Andreas Plank (Talk | contribs) (1 revision: import_noun-simple)

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search
polymorphism (noun; Greek polys, many; morphe, form): 1. The simultaneous occurrence of two or more distinctive and discontinuous genetic types existing in a population.

2. (Arthropoda: Insecta) In social insects, the coexistence of two or more phases or castes, belonging to the same sex, within an individual colony. a. In Formicidae, the occurrence of nonisometric growth of size variation in a normal mature colony, thus producing individuals of distinctly varying proportions.

3. (Bryozoa) Repeated, discontinuous variation in zooid morphology in a colony.