The Complementarity-Determining Region (CDR)1 and CDR2 Loops of the T-Cell

question 24

Multiple Choice

The complementarity-determining region (CDR) 1 and CDR2 loops of the T-cell receptor contact the _______:

• A)side chains of amino acids in the middle of the peptide
• B)co-receptors CD4 or CD8
• C)membrane-proximal domains of the MHC molecule
• D)constant regions of antibody molecules
• E)α helices of the MHC molecule.

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Definitions:

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The state or quality of being dedicated to a cause, activity, or person, often involving a promise or firm decision to be involved.

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Activities perceived as involving a high degree of risk, often involving speed, height, or physical exertion.