3. All of the following molecular features are present in both prokaryotic and eukaryotic cells EXCEPT:(A)DNA double helix;(B)Microtubules;(C)Lipid bilayer-based biomembranes;(D)Potassium channels.

9. Your Biology teacher gives you two human cell lines, A and B, which are in G₀ and G₁ phases of the cell cycle, respectively. Which of the following cellular event is true if these two cell lines are stimulated with growth factors to pass the restriction point?(A)Only the G₀ cell will replicate its DNA;(B)Only the G₁ cell will replicate its DNA;(C)Both cells will replicate their DNA;(D)Neither of the cells will replicate their DNA.

3. All of the following molecular features are present in both prokaryotic and eukaryotic cells EXCEPT:
(A)DNA double helix;
(B)Microtubules;
(C)Lipid bilayer-based biomembranes;
(D)Potassium channels.

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