When they leave the red marrow, pre-T-lymphocytes have
A. only the CD4 protein.
B. only the CD8 protein.
C. both the CD4 and CD8 proteins.
D. neither the CD4 nor CD8 protein.
E. either the CD4 or CD8 protein.
C
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Identify the auditory ossicles
a) A, B, C b) A, C, G c) A, B, J d) J, C, G e) C, D, G
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