- P granule
A small cytoplasmic, non-membranous RNA/protein complex aggregate in the primordial germ cells of many higher eukaryotes.
- oogonium stage
The stage in mammalian oogenesis when the primordial germ cell is hardly distinguishable from other cortical cells of the ovary.
- P granule organization
A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of polar granules, cytoplasmic, non-membranous RNA/protein complex aggregates in the primordial germ cells of many higher eukaryotes.
- Z granule
A small cytoplasmic, non-membranous RNA/protein complex aggregate in the primordial germ cells that are distinct from, but colocalize with or are adjacent to, P granules and mutator foci and are associated with RNA metabolism. Z granules have been observed in C. elegans.
- spermatogonial cell division
The mitotic divisions of the primary spermatogonial cell (a primordial male germ cell) to form secondary spermatogonia (primary spermatocytes).
- mammalian oogenesis stage
A reproductive process that is a step in the formation and maturation of an ovum or female gamete from a primordial female germ cell.
- oogenesis
The complete process of formation and maturation of an ovum or female gamete from a primordial female germ cell. Examples of this process are found in Mus musculus and Drosophila melanogaster.