What is true of morphogens?

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    They exist in a concentration gradient throughout the embryo.
    They are transcription factors that control development by turning genes on or off.
    They provide positional information for developing embryos.
    All of the above are true.
asked May 19, 2013 in Biology by anonymous
    

1 Answer

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All of the above are true.
answered May 20, 2013 by Bioshare ~Top Expert~ (34,070 points)



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