Stem cells are sometimes referred to as “undifferentiated” due to this maintenance of proliferative properties. ted cell type. 

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#Unit 5. Developmental Biology

In Drosophila, 

BMP homologue Decapentaplegic (Dpp) nd dorsal mesoderm

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#Unit 5. Developmental Biology

In Drosophila, Sog protein is a homologue of Chordin.

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#Unit 5. Developmental Biology

Wnt inhibitors secreted by the organizer are Dickkopf, Cerberus, Frzb & IGF

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#Unit 5. Developmental Biology

Two organizer proteins, inhibt Wnt proteins during gastrulation Tiki and Notum 

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#Unit 5. Developmental Biology

Brain formation requires,  inhibiting both the Wnt and BMP pathways.

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#Unit 5. Developmental Biology

IGFs and FGFs in the anterior region, Initiate the receptor tyrosine kinase (RTK) signalling inhibit BMPs and Wnts pathways