Animal Development

O with older embryo you cant change they dont listen

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Unformatted text preview: a determined cell is but you can tell what a differentiated cell is by looking at it. When do cell fates become determined: o o Fate not determined which means signing from the new environment is influential. o With older embryo, you can’t change. They don’t listen to their new environmental signal. It needs antenna to listen and cells aren’t responding to the signal. o Transplanted cells assume identity of cells corresponding to their new environment at early stages (blastula stage), but not at later stages (gastrula and beyond). o o There is potential for any cell that has matured to dedifferentiate back to undetermined state. DOESN’T happen in adults. You need a suitable growth environment. o Potency: developmental capacity of a cell is described in terms of its dev...
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