A covalent bond is a chemical bond that occurs when two or more atoms share electrons. The sharing of electrons helps complete the outer shell, or valence shell, of both atoms. The sharing of electrons creates a stable balance of attractive and repulsive forces between atoms.

TLS Online TPP Program

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#XL - T Zoology

Rb binds the activation domains of a E2F transcription factors, in the cytoplasm to prevent them from turning on the genes required for cell cycle progression.

TLS Online TPP Program

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#XL - T Zoology

Homophilic Binding 

A CAM on one cell can directly bind to the same kind of CAM on an adjacent cell

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#XL - T Zoology

Rod cells sense light with the aid of a light-sensitive GPCR called rhodopsin.

TLS Online TPP Program

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#XL - T Zoology

TLS Online TPP Program

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#XL - Q Biochemistry

The irreversible inhibition involves reactions with a functional group, such as hydroxyl or sulphydryl, or with a metal atom in the active site or a distinct allosteric site.