34. Nucleic Acids

Which of the following nucleotide bases is found only in $\mathrm{RNA}$?

Which nitrogenous base is present in $\mathrm{RNA}$ but not in $\mathrm{DNA}$?

Which nitrogenous base is found in $ATP$?

Which nitrogenous base pairs with cytosine in $DNA$?

Which of the following nitrogenous bases are classified as $\mathrm{pyrimidines}$?

Draw the other 2 tautomeric forms of cytosine. 

What is the primary structural difference between purines and pyrimidines in nitrogenous bases?

Which nitrogenous base is not found in $\mathrm{RNA}$?

Which of the following is not a nitrogenous base found in $DNA$?

Draw 1 tautomeric form of thymine.

Which of the following statements describe purines but not pyrimidines?

Which RNA base pairs with $T$ (thymine) in $DNA$?

In a nucleotide, which component is responsible for carrying a slightly negative charge?

Which nucleotide base in $DNA$ is replaced by uracil in $RNA$?

Which of the following nitrogenous bases are classified as $\mathrm{pyrimidines}$?