A ribosome contains _____
a. RNA only
b. DNA only
c. proteins only
d. RNA and proteins
e. RNA, DNA, and proteins
ANSWER: d
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Cytokine signaling of phagocytes is an example of:
A. autocrine signaling. B. endocrine signaling. C. paracrine signaling. D. juxtacrine signaling.
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.
The five-year survival rate of ____________________ cancer is only 13%. Fill in the blank(s) with the appropriate word(s)
states Page 61that all organisms are composed of cells, the smallest units of living matter and that new cells come only from preexisting cells.
What will be an ideal response?