[See video of the embryonic experiments].
Embryonic thermal experience affects later growth performance in Atlantic salmon (Salmo salar) [ 73].
Shortly afterwards, the embryonic epidermis experiences powerful contractions along the surface of the embryo.
Like other bears, female pandas experience embryonic diapause, which means that once a fertilised egg has become a blastocyst, it can float around in the uterus for months until the mother is in a prime state to embark on her pregnancy.
Scientists don't know why pandas (and about 100 other mammals) experience embryonic diapause or what causes it to end.
Not all multicellular organisms experience embryonic development.
Bmp2 null mutant mice experience embryonic lethality between E7.0 and E10.5 with severely delayed, ectopic or absence of cardiac development (Zhang and Bradley, 1996).
Guenther et al. 15 demonstrated that while approximately 75% of protein coding genes in human embryonic stem cells experience transcription initiation, only about half of these genes produce detectable full-length transcripts.
Second, aggressive melanoma cells are able to shift ad hoc between mesenchymal and amoeboid motility: in response to pro-inflammatory cytokines they undergo EMT, while after re-expression of embryonic EphA2 receptor, experience a new kind of motility program undergoing MAT [ 81].
Whether V. carteri experiences embryonic development may be a matter of semantics.
These results indicate that mouse embryonic heart enhancers experienced more frequent or more intense, positive selections during their evolution.
