Question

Life span of T-cells __________

(a) 4-5 hours

(b) 4-5 days

(c) 4-5 weeks

(d) 4-5 years

This question was posed to me by my college director while I was bunking the class.

The question is from Human Health and Disease topic in portion Human Health and Disease of Biology – Class 12

Answer 1

The correct option is (d) 4-5 years

To elaborate: Life span of T-cells is around 4-5 years. The T-cells produced are relatively long-lived to compensate the less number of T-cells produced by thymus in the later years.