A protein called Snail that suppresses the expression of E-cadherin is associated with the epithelial-to-mesenchymal transition.

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#Unit 3. Fundamental Processes

short region of A-T -rich DNA is melted.

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#Id: 5208

#Unit 7. System Physiology – Animal

The endothelium of the blood vessels also plays an active role in preventing the extension of clots. 

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#Unit 5. Developmental Biology

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#Id: 1761

#Unit 4. Cell Communication and Cell Signaling

Self-reactive B cells can undergo receptor editing.

In this process, the antigen-specific V region is “edited” or switched for a different V-region gene segment via V(D)J recombination,

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#Id: 2240

#Unit 11. Evolution and Behavior

The neutral-mutation hypothesis proposes that most molecular variation is neutral with regard to natural selection and is shaped largely by mutation and genetic drift.