Helper T-cells can be distinguished from killer T-cells by the presence of _________
A. CD-2 receptor
B. CD-3 receptor
C. CD-8 receptor
D. CD-4 receptor
Answer:D
Helper T-cells can be distinguished from killer T-cells by the presence of _________
A. CD-2 receptor B. CD-3 receptor C. CD-8 receptor D. CD-4 receptor