Amphitoky
Definition
A specialized form of deuterotokous parthenogenesis in which unfertilized eggs can spontaneously develop into individuals of both sexes (both males and females). This structural reproductive mechanism is encountered in certain insect species (such as some aphids or wasps) and represents a biological adaptation strategy for dynamic population regulation in the absence of amphimictic reproduction.
Bilingual Equivalents
- Amphitoky
- Deuterotoky
Grammatical & Source Details
| Inflection Type | Feminine noun, regular structural plural variations with vocalic endings. |
| Formation | Borrowed via French from Greek combining elements 'amphi' (both, double) and 'tokos' (birth, offspring). |
| Spelling / Pronunciation | [am.fi.to.ˈki.e] |
| Source | Glossary of Evolutionary Biology and Reproductive Systems |
Contextual Usage Examples
RO: Fenomenul de amfitochie asigură supraviețuirea coloniei chiar și în absența completă a masculilor adulți.
EN: The phenomenon of amphitoky ensures the survival of the colony even in the complete absence of adult males.
RO: Cercetătorii au analizat această amfitochie experimentală pentru a înțelege mai bine distribuția cromozomilor sexuali.
EN: The researchers analyzed this experimental amphitoky to better understand the distribution of sex chromosomes.
RO: Spre deosebire de teliotohie, prin amfitochie apar variații genetice mult mai complexe în cadrul populației studiate.
EN: Unlike thelytoky, through amphitoky much more complex genetic variations appear within the studied population.
Idioms & Phrases
Proces de amfitochie / Amphitoky process
RO: Succesiune de diviziuni meiotice modificate care permit păstrarea setului diploid de cromozomi fără fertilizare externă.
EN: A sequence of modified meiotic divisions that allow the retention of the diploid chromosome set without external fertilization.
Amfitochie facultativă / Facultative amphitoky
RO: Capacitate reproductivă rară a unei specii de a trece de la reproducerea sexuată normală la cea partenogenetică mixtă.
EN: A rare reproductive capacity of a species to switch from normal sexual reproduction to mixed parthenogenetic reproduction.
Rată de amfitochie / Amphitoky rate
RO: Proporția procentuală de descendenți masculi și femele rezultați exclusiv din ovulele nefecundate ale unei generații.
EN: The percentage proportion of male and female offspring resulting exclusively from the unfertilized eggs of a generation.
Latest Contextual News
No recent news found for this topic.