In the name of ALLAH, the most beneficient, the most merciful

Biochemistry-I (BIO202)

Question (select most suitable option)

  Which one of the following is true of the pentoses found in nucleic acids?
C-5 and C-1 of the pentose are joined to phosphate groups.
The bond that joins nitrogenous bases to pentoses is an O-glycosidic bond.
The pentoses are always in the β-furanose forms.
The straight-chain and ring forms undergo constant interconversion.