Which of the following is true of chemotherapeutic agents?
A. They create broken chromosomes or stalled replication forks.
B. The cytotoxic effect of these DNA damaging agents requires the cell to be actively dividing.
C. These agents are toxic to cancer cells because they are actively dividing to form a tumor.
D. The adverse side effects of chemotherapeutics are strongest in cell types that divide rapidly (hair, blood, and the gastrointestinal tract).
E. All of these statements are true.
E
You might also like to view...
What is true about the operation of gills in water? Check all that apply.
_____ Water can support delicate gill structures. _____ Most bony fish actively pump water over their gills. _____ Keeping membranes moist does not require a separate mechanism. _____ Water carries more oxygen than air, so gills must be more efficient than lungs. _____ Gills have evolved many times. _____ Gills take different forms in different animals.
What structure prevents water from moving between cells of the endodermis of the plant root?
a. Casparian strip b. Okazaki fragments c. sclerids d. collenchyma e. sclerenchyma
If there are 500 oak trees in a forest covering 50 square kilometers, then the population density is ________
A) 5 trees per square kilometer B) 10 trees per square kilometer C) 50 trees per square kilometer D) 100 trees per square kilometer
T lymphocytes that have both CD4 and CD25 are (cytotoxic/helper/regulatory) T cells
What will be an ideal response?