Question

The cells that have ${CD}_8$ markers of the cell membrane are

• A. B- lymphocytes
• B. Natural killer cells
• C. T- cytotoxic cells
• D. T- helper cells

Answer 1

The correct option is C T- cytotoxic cells

CD stands for cluster of differentiation. CD${}_8$ markers, are a transmembrane glycoprotein that functions as a co- receptor for the T cell receptor (TCR). Like the T Cell receptor, CD${}_8$ binds to a major histocompatibility complex (MHC) molecule, but is specific for the class I MHC protein. The CD8 co-receptor is predominantly expressed on the surface of cytotoxic T cells.

Thus, the correct answer is option C.