Question

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

This question was addressed to me in an internship interview.

Origin of the question is Human Health and Disease topic in division Human Health and Disease of Biology – Class 12

Answer 1

Correct option is (d) CD-4 receptor

To explain: Helper T-cells can be distinguished from Killer T-cells by the presence of CD-4 receptor. CD-8 receptors are present in both Killer T-cells and Suppressor T-cells.