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what is the relationship between stem cells mature tissue

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Phyllis,
 
it depends on the type of stem cells: totipotent, pluripotent, multipotent or committed progenitor stem cells. Here is what I teach in the class room:
Totipotent Stem Cells
Capable of generating an entire organism
Capable of generating embryonic and extra-embryonic tissues
Capable of supporting development of an adult organism from embryo
In mammalian embryos early embryonic cells and blastomeres are totipotent
Pluripotent Stem Cells
Can differentiate into all embryonic cell types
Can give rise to ectodermal, mesodermal and endodermal cells
Cannot differentiate into any extra-embryonic tissues, such as placenta
Multipotent Stem Cells
Can differentiate into all the cell types of specific committed lineage
 
Hope this would help.
 
Best,