Which of the following is not a factor that contributes to normal cells becoming cancerous?
A) one or more of the cell's genes being removed by a virus
B) the conversion of a proto- oncogene to an oncogene
C) damage to a tumor- suppressor gene
D) excessive replication of proto- oncogenes
Correct Answer:
Verified
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A)plasma membrane receptors.
B)DNA.
C)signal molecules.
D)mRNA.
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A)a promoter only.
B)a
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