heteromorphic


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heteromorphic

(hĕt′ə-rō-môr′fĭk)
adj.
1. Having different forms at different periods of the life cycle, as in stages of insect metamorphosis.
2. Differing from the standard form in size or structure: heteromorphic chromosome pairs.

het′er·o·mor′phism n.

heteromorphic

  1. (of an organism) having morphologically different forms in the life history, for example, where there is ALTERNATION OF GENERATIONS.
  2. (of pairs of homologous chromosomes) differing in size or form.
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References in periodicals archive ?
A heteromorphic autosomal pair was recorded in two specimens, consisting of a subtelocentric and an acrocentric chromosome (NFa = 67, Arslan & Zima 2015b).
Heteromorphic pair in detail, specifically the secondary constriction and accumulation of heterochromatin differential (B and C).
They were identified as heteromorphic deutonymphs (hypopi) of Hypodectes propus (Nitzch, 1861).
In heteromorphic species, each diaspore type responds to specific conditions, which favors the species to establish in heterogeneous sites (Kingel, 1992).
Although Edmund Beecher Wilson, one of the leading cytologists of that time suspected that not only heteromorphic bivalents (or univalents), but all bivalents experienced reduction at first division (Wilson 1925), the confusion persisted in the following papers by Carothers (1917, 1921, 1926, 1931) in which she studied segregation of heteromorphic bivalents of several other orthopteran genera such as Circotettix, Trimerotropis, Mecosthetus and Amphitornis.
Aquatic or amphibious, stems creeping with adventitious roots from nodes and internodes; leaves heteromorphic (photosynthetic and fertile), petioles filiform, blades palmately divided into 4 pinnae; sporocarps horizontal to strongly ascending near base of petioles.
Definitive taxonomic identification of most damselfly species is based upon microscopic examination, particularly of genital anatomy, and the genus Ischnura is a notoriously difficult one since in many species females, and sometimes males, may be heterochromic and even heteromorphic (see Figs.
Heteromorphic life-history strategies in the brown alga Scytosiphon lomentaria (Lyngb.
Recombination between the male-specific markers and the sex-determining locus indicates that this region is not located on a heteromorphic sex chromosome because recombination would be largely absent.
Massinga PH, Johnson SD, Harder LD (2005) Heteromorphic incompatibility and efficiency of pollination in two distylous Pentanisia species (Rubiaceae).
Column pentagonal, heteromorphic, outer surface of epifacet rounded to very rounded, smooth or slightly keeled; nodals may have vertical expansion at corners of columnals.
rugosa in central Japan has heteromorphic sex chromosomes consisting of metacentric (X) and subtelocentric (Y) types in males, whereas in northern Japan it has heteromorphic sex chromosomes consisting of metacentric (W) and subtelocentric (Z) types in females.