Certification EXAM QUESTIONS AND
VERIFIED ANSWERS
\._____ precursors, or "pre-cells," mature into specialized WBCs called lymphocytes. - Answer-
Lymphoid
\._______ precursors, or "pre-cells," mature into red blood cells (RBCs), platelets, and white
blood cells (WBCs). - Answer-Myeloid
\._________, including Natural killer cells, granulocytes and macrophages are the second line of
defense in the immune system (after skin, mucus membranes and gut flora) - Answer-
Phagocytes
\.2 types of lymphocytes - Answer-T cells and B cells
\.During which phase of the cell cycle do cells enlarge and pass a checkpoint that determines
the cell is ready to divide - Answer-G2 phase
\.During which phase of the cell cycle do cells enlarge and pass a checkpoint that determines
the cell is ready to divide - Answer-G2 phase
\.During which phase of the cell cycle does DNA replication occur - Answer-S Phase
\.important tumor suppressor gene, sometimes called the "suicide gene." - Answer-p53 gene