Which of the following does not take part in stabilizing the cloverleaf model of the tRNA? a) Base stacking b) Base and sugar-phosphate backbone interaction c) Ionic bond d) Hydrogen bond
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The chemical structures of the five nitrogenous bases are shown below. The red N atom in each molecule is the point of attachment for a sugar molecule (ribose or deoxyribose).
Adenine and guanine are purine bases found in both DNA and RNA.
Cytosine is a pyrimidine base found in both DNA and RNA.
Thymine and uracil are pyrimidine bases found in only DNA or RNA, respectively.
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These five nitrogenous bases are all planar molecules, meaning that they are fairly flat and rigid
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