________ play a pivotal role in programmed cell death.
A) Cyclins
B) Telomeres
C) Proto-oncogenes
D) Oncogenes
E) Telomerases
Correct Answer:
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Q5: Malignant breast,colon,and lung cancers typically have
A)mutated tumor
Q6: Metastatic cancer is
A)terminally differentiated.
B)malignant.
C)invasive.
D)B and C only
E)A,B,and
Q7: Retroviruses are responsible for which of the
Q8: A proto-oncogene that gains function due to
Q9: In sporadic (nonhereditary)cancers,mutations occur in _ cells.
A)germ
B)somatic
C)undifferentiated
D)mammary
E)T
Q11: Apoptosis is
A)rapid cell division.
B)caused by proto-oncogenes.
C)the change
Q12: Which of the following statements is not
Q13: v-onc genes are found in
A)vital cells.
B)viral cells.
C)cancer-causing
Q14: Cell proliferation in culture is normally limited
Q15: Mutations in a normal growth-stimulating gene are
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