#aplo

• Amphidiploid — A polyploid organism or cell formed through the hybridization of two different species, followed by the doubling of the chromosome set, thus containing the complete diploid sets of both parental species. As an adjective, it describes a genetically stabilized genome, plant, or agricultural crop (such as triticale) capable of normal fertile reproduction because each chromosome finds its homologue during meiosis.
• Amphidiploidy — A genetic state or a particular type of polyploidy (allopolyploidy) characterized by the presence of a complete diploid set of chromosomes derived from two different parental species following hybridization and subsequent chromosome doubling. This structural phenomenon guarantees the fertility of the hybrid, allowing normal pairing of homologous chromosomes during meiosis, and is widely used in plant genetic engineering to create new plant varieties.
• Andromerogony — The development of an egg fragment deprived of its maternal nucleus (enucleated) but fertilized by a normal spermatozoon, resulting in a haploid embryo possessing structurally only genetic material of paternal origin. This experimental biological process is studied to analyze the role of egg cytoplasm and male genome in cleavage.
• Aplo- — A learned combining form or prefixoid used in international scientific terminology to express the idea of simple, single, isolated, or uncompounded. Originating from ancient Greek, this structural element serves to form complex technical terms in fields such as linguistics (syllable reduction), cell biology (referring to chromosome sets), or medicine.
• Haplology — An accidental or regular phonetic modification consisting of the elimination of one of two identical or similar syllables that immediately succeed each other inside a word or at the junction between two words. This structural phenomenon of simplification tends to fluidize pronunciation, a classic example in Romanian being the evolution of certain compound or derived forms where repetitive elements are naturally dropped.
• Aplomb — Full self-confidence, absolute trust in one's own abilities, and presence of mind manifested publicly through a firm, calm, and imposing attitude; the structural capacity of an individual to maintain psychological balance and dignity in difficult situations, reacting promptly and efficiently before any audience in a social context.
• Simple — Being simple, uncompounded, single, or formed of a single structural element or a uniform chromatic shade. The term represents a rare adjectival adaptation of the Greek root 'haplos', sometimes used in old academic botanical works to describe a flower with a single row of petals or a plant organ unseparated into lobes.
• Aplotite — A rare variety of gneissic vein rock or fine granitic gneiss, characterized by a well-defined aplitic or microgranular structure. This geological body is structurally composed mainly of quartz, plagioclase feldspar, and white micas, exhibiting a flattened or schistose macroscopic appearance due to metamorphic tectonic pressures exerted along the crystalline axes.
• Apogametic — Pertaining to apogamy or specific to developmental processes without syngamy; characterized by genetic and structural properties identical to those of the maternal gametophyte from which the sporophyte directly originates. In advanced plant genetics, the term describes cell lines or offspring resulting from a modified reproductive pathway that maintains the haploid or unchanged chromosome number.
• Arrhenotoky — A particular form of arrhenotokous parthenogenesis in which unfertilized eggs develop structurally and exclusively into male individuals (haploid males). This biological mechanism is characteristic of many social insect species belonging to the Hymenoptera order (bees, wasps, ants), ensuring the production of drones within the colony.
• Autotetraploid — A polyploid organism or cell possessing four identical sets of chromosomes (4n), all derived through the multiplication or duplication of the base chromosome set of the same species, without interspecific hybridization. This structural genetic phenomenon, frequently encountered in the plant kingdom, often leads to plants with larger vegetative organs, bulkier flowers, and increased resistance to environmental factors.
• Azygoid — Pertaining to a haploid organism, cell, or biological structure developed through parthenogenesis, lacking a homologous pair; a biological entity that possesses a single set of chromosomes and develops directly from an unfertilized egg, bypassing the zygote stage.
• Azygote — A haploid organism or cell resulting from a parthenogenetic developmental process, without prior fertilization of gametes; an individual that develops directly from an unfertilized egg, possessing a single set of chromosomes and lacking paired genes.