The similarity of the outer embryonic envelope of acanthocephalans is not restricted by its morphology.
A method for cultivating morphologically undifferentiated embryonic stem cells from porcine blastocysts.
Hence, their interests converged, and a new venue for struggle was created in the form of embryonic nationalism.
Changes in transcriptional machinery and chromatin structure have essential roles during transition from acquisition of transcriptional competency to minor and eventually major embryonic genome activation.
One possibility, which has some parallels in other species, is the presence of recessive lethal genes which cause embryonic death in the homozygote.
Transplacental uptake of glucose is decreased in embryonic lethal connexin26-deficit mice.
For methionine, neither its uptake nor its incorporation into proteins is reduced in the presence of glycine for the two embryonic stages tested here.
Most morphological alterations were presented by the vacuolization of embryonic cells, disintegrated cytoplasm, swollen mitochondria and dilatation in rough endoplasmic reticula.
