Precursor cell (or simply precursors), is widely used to denote any ancestral cell type (either stem cell or progenitor cell) of a particular lineage.

TLS Online TPP Program

#Id: 1353

#Unit 4. Cell Communication and Cell Signaling

GRB2 SH2 domain binds to a specific phosphotyrosine residue in the cytosolic domain of an activated RTK.

 

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#Id: 9751

#Unit 6. System Physiology – Plant

Elicitor Caeliferins secreted by grasshoppers act as elicitors of jasmonic acid accumulation and ethylene emission

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#Id: 10082

#Unit 4. Cell Communication and Cell Signaling

The binding of integrins to their ligands depends on extracellular divalent cations(Ca+2 & Mg+2)

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#Id: 695

#Unit 3. Fundamental Processes

1. DNA polymerase I is a single polypeptide of 103 kD. 

2. The chain can be cleaved into two parts by proteolytic treatment. The larger cleavage product (68 kD) is called the Klenow fragment. It is used in synthetic reactions in vitro. 

3. It contains the polymerase and the proofreading 3’–5’ exonuclease activities.

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#Id: 7439

#Unit 5. Developmental Biology

Fruiting structure consists of a tapered column of stalk cells that carries a spherical mass of spores aloft.