What nonspecific cells kill virus-infected cells and tumor cells by cell to cell contact?
A)Mast cells
B)Natural killer cells
C)T lymphocytes
D)B lymphocytes

Question

Quizplus · Accepted Answer

Natural killer cells are nonspecific cells that can recognize and kill virus-infected cells and tumor cells by direct contact, without the need for prior sensitization or activation. Mast cells are involved in allergic reactions and inflammation, while T and B lymphocytes are specific immune cells that require prior recognition and activation by specific antigens.

What Nonspecific Cells Kill Virus-Infected Cells and Tumor Cells by Cell