The role of a tumor suppressor protein in a cell is to
a. promote cell division of healthy cells.
b. halt cell division in healthy cells experiencing difficulties in DNA replication.
c. promote cell division of abnormal cells.
d. trigger DNA replication in preparation for cell division.
e. activate cyclin-dependent protein kinases.
B
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The baroreceptors are located in the ____
a. adrenal glands b. brainstem c. heart d. erythrocytes e. walls of blood vessels
In what phase of the cell cycle does a typical cell spend most of its life?
a. interphase b. prophase c. metaphase d. anaphase e. telophase
In androgen insensitivity syndrome,
a. no testosterone is produced. b. chemicals circulating in the blood deactivate the male hormone. c. the cellular receptor for testosterone in the target cells is defective. d. the male with this defect is normal in all respects except that he is sterile. e. all of these are true.
Which of the following stages of an infectious disease is the most severe?
A) the incubation period B) the prodromal period C) the illness period D) the decline period E) the convalescence period