Question

Which one of these does not pertain to B-cells?

• A. Have passed through the thymus
• B. Synthesize and liberate antibodies
• C. Have antibody-mediated immunity
• D. Have specific receptors

Answer 1

The correct option is A Have passed through the thymus

B cells develop in the bone marrow but achieve maturity in peripheral lymphoid organs. Developmental stages are defined by the successful expression of heavy-chain and light-chain immunoglobulin genes. B cells provide humoral immunity against extracellular pathogens through antibody production. Antibodies neutralize pathogens and toxins, facilitate opsonization, and activate complement. The B-cell receptor or BCR is composed of immunoglobulin molecules that form a type 1 transmembrane receptor protein usually located on the outer surface of a lymphocyte type known as B cells.

So, the correct option is 'Option A'.