Question

Progenitors formed in bone marrow but differentiating elsewhere are

• A. Pre-NK cells
• B. Pre-erythroblasts
• C. Pre-T cells
• D. Myeloblasts

Answer 1

The correct option is C Pre-T cells

Pre T cells are progenitors of T- lymphocytes which are produced from the bone marrow. Pre- T cells undergo differentiation and maturation in the thymus to form matured T- cells. T-cells can be distinguished from other lymphocytes by the presence of a T-cell receptor on the cell surface. Hence, Progenitors formed in bone marrow but differentiating elsewhere are Pre-T cells.

So, the correct answer is 'Pre-T cells'.