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
Operant lineages that exist in behavioral repertoires do not all arise from primordial behavior.
The literati re-oriented the primordial sentiments seen as embedded in past samajs in the nineteenth century.
Maturation and fertilization of porcine oocytes from primordial follicles by a combination of xenografting and in vitro culture.
Only primordial and primary follicles were observed in the grafts 6 weeks after xenografting (c).
In the oocyte cortex were observed coated pits, coated vesicles, dense tubules, multivesicular bodies and primordial yolk spheres.
Isolation of pluripotent stem cells from cultured porcine primordial germ cells.
Nuclear remodelling and early development in cryopreserved, porcine primordial germ cells following nuclear transfer into in w'fro-marured oocyted.
Requirement for folliclestimulating hormone action in the formation of primordial follicles during perinatal ovarian development in the hamster.
