The following are multiple choice questions (with answers) about medical knowledge.   **Question:** All the following markers are expressed on the surface of T-cells at some stage of development except:   (A) CDIa   (B) PAX5   (C) CD 34   (D) Tdt
['(B) PAX5 <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) CDIa \n (B) PAX5 \n (C) CD 34 \n (D) Tdt <> possible answers', '  All the following markers are expressed on the surface of T-cells at some stage of development except: <> context@']