Which of the following chemical differences contribute to increased structural v

Question

Which of the following chemical differences contribute to increased structural variety of RNA over DNA? In addition to the double-stranded regions, virtually all of the unpaired bases are involved in base stacking interactions, increasing the variety and stability of RNA. Since RNA molecules have no pucker the sugar molecules are flat and can add to stacking stabilization. Base stacking contributes less to RNA stability because fewer bases are paired. Because ribose has one less hydroxyl group there are fewer opportunities for RNA to hydrogen bond. Different sugar puckers cause the phosphates in the RNA backbone to be farther apart. Which of the following chemical differences contribute to increased structural variety of RNA over DNA? In addition to the double-stranded regions, virtually all of the unpaired bases are involved in base stacking interactions, increasing the variety and stability of RNA. Since RNA molecules have no pucker the sugar molecules are flat and can add to stacking stabilization. Base stacking contributes less to RNA stability because fewer bases are paired. Because ribose has one less hydroxyl group there are fewer opportunities for RNA to hydrogen bond. Different sugar puckers cause the phosphates in the RNA backbone to be farther apart.

Explanation / Answer

In addition to the double-stranded regions, virtually all of the unpaired bases are involved in base stacking interactions, increasing the variety and stability of RNA.

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