Vinblastine, a chemotherapeutic drug used to treat breast and testicular cancers, interferes with the
assembly of microtubules. Speculate how this drug works to inhibit cancer cell growth.
a. Vinblastine inhibits transition from G1 to S.
b. Vinblastine inhibits transition from S to mitosis.
c. Vinblastine inhibits cytokinesis.
d. Vinblastine disrupts mitotic spindle formation and consequently mitosis.
e. Vinblastine inhibits cyclin production.
D
You might also like to view...
The affinity of hemoglobin for oxygen is _______ by lowered blood pH and this ______ oxygen delivery to tissues.
A. increased, increases B. increased, decreases C. decreased, increases D. decreased, decreases E. not affected, does not affect
Which statement concerning the sympathetic and parasympathetic branches of the nervous system is true?
a. The sympathetic system controls external stimuli, while the parasympathetic system controls internal stimuli. b. The sympathetic system generally produces increased physical activity, while the parasympathetic system produces a decrease in physical activity. c. Both nervous systems stimulate the activities of many organs. d. Both nervous systems release norepinephrine. e. The sympathetic system is under voluntary control, and the parasympathetic system is under involuntary control.
Each NADH produced in the cytoplasm by
glycolysis yields how many molecules of ATP if it is used in electron transfer phosphorylation in liver, heart, or kidney cells? a. 2 b. 3 c. 4 d. 6 e. either 2 or 3
Cartilage functions well as a cushioning structure because it is composed primarily of collagen fibers in a ground substance with a lot of water
Indicate whether the statement is true or false