diandry — dianˈdry noun The practice or condition of being diandrous • • • Main Entry: ↑diandrous … Useful english dictionary
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
