#Question id: 7105
#Unit 5. Developmental Biology
The "default model" for neural tissue formation states that
#Question id: 7106
#Unit 5. Developmental Biology
In what genetic background could beta-catenin turn on target gene expression without Wnt protein?
#Question id: 7107
#Unit 5. Developmental Biology
What would be the effect on the timing of somite formation, if a piece of the pre-somitic mesoderm of a chick embryo is rotated by 180° and reinserted in its original position?
#Question id: 7108
#Unit 5. Developmental Biology
Relative to the primitive streak and Henson's node, somite formation in the chick embryo occurs:
#Question id: 7109
#Unit 5. Developmental Biology
What observation might explain how somites originally become specified to form structures appropriate to their position along the antero-posterior axis?
#Question id: 7110
#Unit 5. Developmental Biology
What may be the molecular trigger that causes cells in the presomitic mesoderm to finally condense into somites?