Complex sentence: Type Ap cells will mature and become type B cells and move on to the adluminal compartment (towards the inner region of tubule) and become primary spermatocytes; this process takes about 16 days to complete.
Split into simpler sentences: Type Ap cells will mature and become type B cells. Type B cells will move on to the adluminal compartment (towards the inner region of tubule) and become primary spermatocytes; this process takes about 16 days to complete.