Questions and Answers
Which signals are required for complete lens differentiation?
Signals from the optic vesicle
What is the role of the cranial neural crest in lens formation?
It suppresses any residual lens-forming bias
What is the relationship between the optic vesicle and surface ectoderm during lens formation?
They adhere through an extracellular matrix
When does the thickening of the lens placode occur in dogs?
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What has been described as a tight, extracellular matrix-mediated adhesion between the optic vesicle and the surface ectoderm?
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Which area of ectoderm first becomes competent to respond to lens inducers?
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What is the role of inhibitory signals from the cranial neural crest in lens formation?
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What is the relationship between the basement membranes of the optic vesicle and the surface ectoderm during lens formation?
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When does the thickening of the lens placode occur in dogs?
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What type of adhesion has been described between the optic vesicle and the surface ectoderm?
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