Hot answers tagged stem-cells
There is no specific dye for stem cells. You would have to do a immuno-histochemical staining for stem cell markers such as Sox2/Oct4 etc. Usually stem cells have a distinct morphology (round and clustered). You can use Leishman's (or Romanowsky-Giemsa) stain.
It would not be possible to differentiate CSC from normal population non-invasively and select them out. You may do a single cell expression analysis to say if a CSC is present in a population or not but there is no magic bullet method for eliminating them. Also there are several oncogenes and some of them are also required for usual stem cell function. HAT ...
When you look at the development of the embryo, at the beginning all cells are totipotent, meaning they can develop into any cell type of the body. This changes relatively fast by differentiation, which means that the totipotent cells develop into more specialized cell types, which then can not give rise to all cell types. So the different germ layers (meso, ...
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