#Question id: 7100
#Unit 5. Developmental Biology
If cells from the animal pole of a frog blastula (animal cap cells) are placed into contact with cells from the vegetal hemisphere, after removing the cells fated to form mesoderm, what is the result?
#Question id: 7101
#Unit 5. Developmental Biology
What is the mechanism by which cells fated to be mesoderm form in the marginal zone of the Xenopus embryo?
#Question id: 7102
#Unit 5. Developmental Biology
How is the Spemann organizer distinguished from the other mesodermal cells during induction by the cells of the vegetal region?
#Question id: 7103
#Unit 5. Developmental Biology
Patterning of the Xenopus mesoderm along the dorso-ventral axis involves an antagonistic relationship between chordin and BMP-4. Is there an analogy here to dorso-ventral patterning in the Drosophila embryo?
#Question id: 7104
#Unit 5. Developmental Biology
The grafting of the dorsal lip of the blastopore from an early Xenopus gastrula onto the ventral side of an early embryo will result in
#Question id: 7105
#Unit 5. Developmental Biology
The "default model" for neural tissue formation states that