0 existing at or since the beginning of the world or the universe:
1 existing at or since the beginning of the world or the universe:
primordial gases
Gradual evolution in a primordial organic world might produce a rather complex and diverse mixture of organic compounds and their inorganic partners.
In the primordial follicle oocytes reach the dictyate stage of prophase 1, at which point meiotic arrests occurs.
The problem of how to interweave the primordial+particularistic orientations with the universalistic constituted in all these civilizations a potential point of contention.
The staining intensity in oocytes of primordial and primary follicles was stronger than in late-staged follicles.
Their expression has been detected in the human fetal ovary (cleaved caspase-3) between 14-19 weeks, a time leading to primordial follicle formation.
The factors that control primordial follicle activation and further growth of primary follicles are not well understood.
Primordial oocytes are formed during fetal development and therefore may reside within the ovaries for as long as 40 years before transformation into mature oocytes.
Requirement for folliclestimulating hormone action in the formation of primordial follicles during perinatal ovarian development in the hamster.
