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What is the monomer of the DNA molecule?


A) Polynucleotide
B) Monosaccharide
C) Nucleotide
D) Peptide

E) B) and D)
F) B) and C)

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What does it mean when we say a gene is "turned off"?


A) The gene is no longer working properly.
B) The gene cannot be transcribed and translated into a protein.
C) The gene has a mutation.
D) The gene is now activated.

E) None of the above
F) A) and C)

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How does a cell typically know when to divide?


A) Cells have an internal clock and divide only when they reach a certain age.
B) Tumor suppressor genes code for growth factor proteins that initiate cell division.
C) Proto-oncogenes code for growth factor proteins that initiate cell division.
D) Oncogenes code for growth factor proteins that initiate cell division.

E) B) and C)
F) A) and D)

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What is different from one DNA nucleotide to the next?


A) The sugar molecule
B) The phosphate group
C) The base
D) The protein

E) None of the above
F) All of the above

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