Myeloid stem cells and blasts express which of the following on their surface?
a. CD4
b. CD8
c. CD34
d. Terminal deoxynucleotidyl transferase (TdT)
ANS: C
CD34 is expressed on the surface of myeloid stem cells and blasts. CD4, CD8, and TdT are all markers of lymphoid lineage. In addition, TdT is not a membrane antigen but rather is found in the nucleus.
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