Question

Which of the following statements about antibody molecules is not true?

• A. All are proteins
• B. All are immunoglobulins
• C. All have light and heavy chains
• D. All are produced by T-cells

Answer 1

The correct option is D All are produced by T-cells

Antibodies are immune system-related proteins called immunoglobulins. Each antibody consists of four polypeptides– two heavy chains and two light chains joined to form a "Y" shaped molecule. Antibodies are produced by specialized white blood cells called B lymphocytes (or B cells). When an antigen binds to the B-cell surface, it stimulates the B cell to divide and mature into a group of identical cells called a clone.

So, the correct option is 'Option D'.