Ameiosis
Definition
A special type of aberrant or modified cell division in which classic meiosis is not completed or is entirely replaced, resulting in reproductive cells (gametophytes or spores) that retain the unchanged diploid chromosome number of the parent cell (without chromatic reduction). This structural phenomenon is closely linked to the process of apomixis in certain plant species, allowing asexual reproduction through genetically viable seeds.
Bilingual Equivalents
- Ameiosis
- Unreduced meiosis
Grammatical & Source Details
| Inflection Type | Feminine noun, with regular structural variations matching academic biological frameworks. |
| Formation | Neologic compound built from the Greek privative prefix 'a-' (without) and the scientific noun 'meiosis'. |
| Spelling / Pronunciation | [a.mej.ˈo.zə] |
| Source | International Dictionary of Cytology and Advanced Plant Genetics |
Contextual Usage Examples
RO: Fenomenul de ameioză împiedică recombinarea genetică clasică, transmițând genomul matern intact.
EN: The phenomenon of ameiosis prevents classic genetic recombination, transmitting the maternal genome intact.
RO: Cercetătorii au studiat cazurile de ameioză la plantele de păpădie pentru a înțelege evoluția speciei.
EN: Researchers studied cases of ameiosis in dandelion plants to understand the species' evolution.
RO: O eroare în faza de profază poate devia diviziunea normală către o ameioză structurală.
EN: An error in the prophase phase can deviate normal division toward a structural ameiosis.
Idioms & Phrases
Proces de ameioză / Ameiosis process
RO: Succesiune de etape citologice în care fusul de diviziune nu separă seturile omoloage de cromozomi.
EN: A sequence of cytological stages where the division spindle fails to separate homologous sets of chromosomes.
Ameioză apomictică / Apomictic ameiosis
RO: Mecanism botanic ce stă la baza formării embrionului fără fecundare, păstrând trăsăturile plantei mamă.
EN: Botanical mechanism underlying embryo formation without fertilization, preserving the traits of the parent plant.
Analiză de ameioză / Ameiosis analysis
RO: Investigație de laborator realizată la microscop pentru a determina ploidia celulelor reproducătoare.
EN: Laboratory investigation performed under a microscope to determine the ploidy of reproductive cells.
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