What does the Lewis Wolpert French Flag Model illustrate about tissue differentiation?
Understand the Problem
The question is asking about the implications of the Lewis Wolpert French Flag Model in relation to how tissues differentiate. It requires understanding the model's contribution to our knowledge of developmental biology and the mechanisms by which tissues acquire their identities based on their positions during embryonic development.
Answer
Illustrates how cells differentiate based on morphogen concentration gradients.
The French Flag Model illustrates how embryonic cells differentiate by responding to a gradient of morphogen concentration, resulting in different cell states or tissue types represented by the different colors of the French flag.
Answer for screen readers
The French Flag Model illustrates how embryonic cells differentiate by responding to a gradient of morphogen concentration, resulting in different cell states or tissue types represented by the different colors of the French flag.
More Information
The model uses the analogy of the French flag's colors to represent different cell states that are determined by varying levels of a morphogen. It is a fundamental concept in developmental biology for understanding tissue patterning.
Tips
Common mistakes include misunderstanding the role of morphogens and assuming that cells have only two states instead of multiple states along the gradient.
Sources
- The French Flag Model | Embryo Project Encyclopedia - embryo.asu.edu
- Wolpert's French Flag: what's the problem? | Development - journals.biologists.com
- French flag gradients and Turing reaction-diffusion versus ... | ScienceDirect - sciencedirect.com
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