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Definition
| Generation of form and structure within an organism during development. |
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Term
| Differential adhesion hypothesis |
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Definition
| Model of cell interactions which predicts that cells rearrange themselves into the most thermodynamically stable pattern, where the interfacial free energy is minimized. |
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Term
| Differential cell affinity |
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Definition
| Ability of different cells to selectively recognize other cells and substrates, adhering to some and migrating over others. |
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Definition
| Change in cellular behavior in a tissue in response to a signal produced by another tissue. |
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Definition
| A signal produced by an inducing cell or tissue that diffuses over a short distance and brings out changes in a responding cell or tissue. |
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Definition
| A molecule on the surface of a cell that induces a response in another cell. |
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Term
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Definition
| The ability of a tissue to respond to an inductive signal. |
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Definition
| Situation in which one tissue receives and responds to a signal from another tissue in part by sending a signal back, creating a response in that tissue. |
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Term
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Definition
| Situation in which a specific signal from an inducing tissue is needed to bring about changes in gene expression in the responding cell. |
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Definition
| Situation in which a responding tissue only needs to a generally suitable environment to differentiate in some predetermined way. |
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Term
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Definition
| A molecule produced in one tissue that is secreted into the blood and delivered to a responding tissue in another part of the body; a hormone. |
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Term
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Definition
| A molecule produced by a cell that stimulates its own production in the same cell. |
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Term
| Signal transduction pathway |
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Definition
| A biochemical pathway that detects the presence of a signal molecule at the cell surface and brings about a response in the cell to the presence of the signal. |
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Term
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Definition
| Genetically programmed cell death that is part of a normal developmental pathway. |
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