Medical Definition of Mosaic egg

1. At one time a distinction was drawn between those organisms in which the egg seemed to have a firmly committed fate map built in and regulating embryos. In the former, after the first cleavage one blastomere was committed to produce one set of tissues, the other blastomere a different set and removal of one blastomere led to the production of an incomplete embryo. This was particularly obvious in mollusc development where one blastomere had the polar lobe material. This early differentiation (or determination) of blastomeres for particular fates was in distinction to regulating embryos in which the removal of one blastomere did not matter, the other blastomere compensating and producing a full set of tissues. The distinction is, however, only based upon the timing of differentiative events and within a few divisions the regulating embryo also becomes a mosaic of determined cells. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)



Mosaic Egg Pictures

Click the following link to bring up a new window with an automated collection of images related to the term: Mosaic Egg Images

Lexicographical Neighbors of Mosaic Egg

morulas
morulation
morulations
moruloid
morus
morwe
morwening
morwenings
morwes
morwong
morwongs
mos'
mosaic
mosaic culture
mosaic egg (current term)
mosaic fundus
mosaic gold
mosaic inheritance
mosaic pattern
mosaic viruses
mosaical
mosaically
mosaicism
mosaicisms
mosaicist
mosaicists
mosaicities
mosaicity
mosaick

Other Resources Relating to: Mosaic egg

Search for Mosaic egg on Dictionary.com!Search for Mosaic egg on Thesaurus.com!Search for Mosaic egg on Google!Search for Mosaic egg on Wikipedia!

Search