Which is a flow cytometric B cell marker?: (A) CD 2, (B) CD 3, (C) CD 7, (D) CD 19
Answer is D. * B cell markers are CD 19, 20, 21 and 23.* TH cell markers are CD 4, 3, 7, 2* TC cell markers are CD 8, 3, 7, 2* NK cell markers are CD 2, 16, 56