diandry

diandry
dianˈdry noun
The practice or condition of being diandrous
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Main Entry:diandrous

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  • diandry — possessing two different types of males, a large, brightly coloured and aggressive terminal phase (TP) and a smaller, drab and relatively non aggressive initial phase (IP), e.g. in Thalassoma lunare (Labridae). The TP has priority access to food… …   Dictionary of ichthyology

  • diandry, diandria — The phenomenon in which a single ovum is fertilized by a diploid sperm and hence produces a triploid fetus. Cf.:digyny. [di + G. andros, male] …   Medical dictionary

  • Polyploidy — occurs in cells and organisms when there are more than two homologous sets of chromosomes.Most organisms are normally diploid; polyploidy may occur due to abnormal cell division. It is most commonly found in plants. Haploidy may also occur as a… …   Wikipedia

  • Polyploid — This image shows haploid (single), diploid (double), triploid (triple), and tetraploid (quadruple) sets of chromosomes. Triploid and tetraploid chromosomes are examples of polyploidy. Polyploid is a term used to describe cells and organisms… …   Wikipedia

  • protogyny — (adjective protogynous)) organism first female, later changing to male, e.g. Epinephelus guttatus (Serranidae). Divided into two types functionally, monandry where all males develop from functional females by sex change and diandry where there… …   Dictionary of ichthyology

  • Hermaphrodite — For other uses, see Hermaphrodite (disambiguation). Mating Helix aspersa (garden snails). In biology, a hermaphrodite is an organism that has reproductive organs normally associated with both male and female sexes.[1] Many taxonomic groups of an …   Wikipedia

  • diandric — adjective for diandry …   Dictionary of ichthyology

  • monandry — protogynous hermaphrodites among which all males are sex reversed females. See also diandry …   Dictionary of ichthyology

  • Di- (prefix) — Di comes straight from the Greek and means twice or double or twofold, as in diacid, diamelia (absence of two limbs), diandry (double male genetic contribution) and digyny (double female genetic contribution); the drugs diazepam, dicyclomine… …   Medical dictionary

  • digyny, digynia — Fertilization of a diploid ovum by a sperm, which results in a triploid zygote. Cf.:diandry. [di + G. gyne, woman] …   Medical dictionary

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