Question

Primary and secondary immune responses are carried out with the help of

• A. B-Lymphocytes
• B. T-Lymphocytes
• C. Antiviral Proteins
• D. Both B-Lymphocytes and T-Lymphocytes

Answer 1

The correct option is D Both B-Lymphocytes and T-Lymphocytes

Both B and T lymphocytes are involved in the primary and secondary immune responses of an individual. The cells are naïve in the first or the primary encounter and react as mature lymphocytes during subsequent encounters.

So, the correct answer is 'Both B-Lymphocytes and T-Lymphocytes'.