P2 cell establishes the

dorsal-ventral axis of C. elegans and confers on the ABp blastomere a fate different from that of its sister cell.

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#Id: 7507

#Unit 4. Cell Communication and Cell Signaling

ZnA and ZnB on RAG1 are regions of the proteins that form zinc fingers, elongated protein domains stabilized by the coordination of a Zn ion.

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#Unit 4. Cell Communication and Cell Signaling

The ZnA region of the protein assists in the initial RAG1 binding to active chromatin via its ability to interact with histone H3.

TLS Online TPP Program

#Id: 9872

#Unit 4. Cell Communication and Cell Signaling

Innate immunity is the most ancient form of defense, found in all multicellular plants and animals.

TLS Online TPP Program

#Id: 9873

#Unit 4. Cell Communication and Cell Signaling

TLS Online TPP Program

#Id: 9874

#Unit 4. Cell Communication and Cell Signaling

The innate immune system includes physical and chemical—as well as cellular responses

TLS Online TPP Program

#Id: 9875

#Unit 4. Cell Communication and Cell Signaling

The main physical barriers—the body’s first line of defense—are the epithelial layers of the skin and of the mucosal and glandular tissue surfaces connected to the body’s openings