nucleic acids

• phosphodiester bonds form between adjacent nucleotides
• phosphodiester consists of a phosphate group and two ester bonds

  • phosphate with doubke bonds oxygen attached to oxygen and carbon
• nucleotides are the monomer of DNA AND RNA
• How do polynucleotides form?

  • Condensation reactions between nucleotides form strong phosphodiester bonds (sugar-phosphate backbone).
• Which bases are purine and which are pyrimidine?

  A & G = 2-ring purine bases

  T & C & U = 1-ring pyrimidine bases
• a condensation reaction between two nucleotides forms a phosphodiester bond