#haploid

• 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.
• 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.
• 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.