Final answer:
Immature T lymphocytes are produced in the red bone marrow and travel to the thymus for maturation. This statement is true.
Step-by-step explanation:
Lymphocytes are the only formed element of blood that arises from lymphoid stem cells. They form initially in the bone marrow and undergo further development and reproduction in the lymphatic tissues. Immature T lymphocytes, specifically, are produced in the red bone marrow and travel to the thymus for maturation. Therefore, the statement is true.