Antigen pieces are held within the binding groove of a cell surface protein called the major histocompatibility complex (MHC) molecule which recognized by T cell

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#Id: 10099

#Unit 4. Cell Communication and Cell Signaling

Adherens junctions

functions as a tension cable that can internally brace the cell and thereby control its shape

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#Id: 4857

#Unit 1. Molecules and their Interaction Relevant to Biology

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#Id: 2375

#Unit 5. Developmental Biology

 Wnt signaling achieves its repression of head regeneration by inhibiting Erk

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#Id: 770

#Unit 3. Fundamental Processes

Once an enzyme makes a transcript longer than 10 nucleotides, it is said to have escaped the promoter. At this point, it has formed a stable ternary complex, containing enzyme, DNA, and RNA. This is the transition to the elongation phase.

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#Id: 1202

#Unit 7. System Physiology – Animal

Three estrogens are present in the plasma of the human female:

1. β-estradiol

2. Estrone

3. Estriol