Leukocyte common antigen is:
Ans. (a) CD 45(Ref: Robbins 9th/pg 590; 8th/pg 600; Wintrobe's 12th/pg 2522)CD 45Found in all hematopoietic cells except erythrocytes.CD45 plays an essential role in lymphocyte activation.Peripheral blood naive T cells are CD45RA, whereas memory (activated) T cells are CD45RO+
CD 45
CD 20
CD 19
CD 41
Misc. (W.B.C)