A(n) ________ is a mutated regulatory gene that causes cancer.
A) neogene
B) plasmogene
C) toxogene
D) oncogene
E) monogene
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Question 2) Cancer cells
A) are indistinguishable from normal body cells.
B) have a slow mitotic rate.
C) may exhibit metastasis.
D) do not form neoplasms.
E) generally form benign tumors.
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Question 3) An alternate term for tumor is
A) neoplasm.
B) cytoplasm.
C) benign malignancy.
D) primary metastasis.
E) nucleoplasm.
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Question 4) When telomeres get too short after repeated cell divisions,
A) the cell dies.
B) the cell becomes cancerous.
C) the cell stops dividing.
D) the chromosomes uncoil.
E) the cell divides more frequently.
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Question 5) Cyclin, a protein that becomes more abundant as the cell cycle proceeds,
A) delays cytokinesis.
B) activates repressor genes.
C) triggers DNA replication.
D) damages telomeres.
E) takes part in triggering mitosis.
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Question 6) A chemical from outside a cell that promotes cell division is called a
A) nutrient.
B) promoter.
C) mutagen.
D) telomere.
E) growth factor.
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Question 7) During growth, a tissue increases in size by
A) increasing the size of its cells.
B) increasing the osmolarity of its tissue fluid to draw in water.
C) increasing its rate of cell division.
D) dilating blood vessels to increase its blood supply.
E) recruiting cells from surrounding tissues.
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Question 8) The physical process by which a single animal cell separates into two cells is called
A) cytosis.
B) mitosis.
C) cytokinesis.
D) phoresis.
E) meiosis.
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Question 9) Special cells called ________ cells maintain tissues by unending cycles of cell division.
A) cytogenic
B) mother
C) stem
D) root
E) omnipotent
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Question 10) Generally, cells with a very brief interphase and lacking a G0 phase
A) are stem cells.
B) do not exhibit cytokinesis.
C) have brief life spans.
D) are reproductive cells.
E) lack the enzyme DNA polymerase.
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