The T-lymphocytes recognize:

T-lymphocytes recognise:

T-lymphocytes are

T-lymphocytes are

T-lymphocytes mature in

T-lymphocytes mature in

T-lymphocytes mature in

Regarding lymphocytes consider the following statement. I. The T-lymphocytes form Cell Mediated Immune System (CMIS). II. The T-lymphocytes cells do not secrete antibodies but help the B-lymphocyte cells to produce them. Which of the statement given above is/are correct?

Disorder in which B-lymphocytes and T-lymphocytes are not formed in: