Question

Surgical removal of thymus of a new born shall result in failure to produce

• A. Monocytes
• B. B-lymphocytes
• C. T-lymphocytes
• D. Basophils

Answer 1

The correct option is C

T-lymphocytes

Since the T-cells mature at thymus, surgical removal of the thymus of a newborn shall result in the failure to produce T-lymphocytes (a type of lymphocyte that plays a central role in cell-mediated immunity).

Monocytes are produced by the bone marrow which after circulating in the bloodstream move into tissues throughout the body where they differentiate into macrophages and dendritic cells.

B-lymphocytes activation occurs in the secondary lymphoid organs, such as the spleen and lymph nodes.

Basophils arise and mature in the bone marrow.