Lymphocytes originate from the same basic stem cell type and then diverge into and lymphocytes.

Lymphocytes, which are a type of white blood cell crucial for the immune system, originate from hematopoietic stem cells in the bone marrow. These stem cells give rise to two primary types of lymphocytes:

1. B Lymphocytes (B Cells): These are responsible for antibody production and play a crucial role in the humoral immune response. They mature in the bone marrow and then migrate to peripheral tissues, where they may encounter antigens.

2. T Lymphocytes (T Cells): These cells are involved in cell-mediated immunity. T cells originate in the bone marrow but mature in the thymus. They are essential for recognizing and responding to infected cells, tumor cells, and regulatory functions within the immune system.

In summary, the two main types of lymphocytes that diverge from the same basic stem cell type are B lymphocytes and T lymphocytes.