Question

The two bases that are pyrimidines _______ and _____ . These bases are comprised of ________ rings.

Answer 1

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The two bases that are pyrimidines Cytosine and Thymin.

These bases are comprised of Single six membered nitrogen containing ring.

Answer 2

The two bases are pyrimidines: Thymine and Cytosine. These bases are comprised of six-membered nitrogenous rings.

• Pyrimidine is a heterocyclic nitrogen compound with six parts.
• The structure of pyridine bases is simple to grasp.
• Resonating atoms in the ring stabilize pyrimidines, resulting in a significant number of imperfect double bonds.
• Pyrimidines are hence planar molecules with good UV absorption at 260 nm.
• Pyrimidine bases can take on several different tautomeric forms depending on the pH.
• Pyrimidines are insoluble in neutral pH because of their hydrophobicity.
• Substituted pyrimidines can be found in RNA, DNA, and coenzymes in nature.