A nucleoside consists of:
Ans. B. Purine or pyrimidine base + sugarposition of nucleotides = Sugar + Base + Phosphate Composition of nucleosides = Sugar + Base. No phosphate is present.
Nitrogenous base
Purine or pyrimidine base + sugar
Purine or pyrimidine base + phosphorous
Purine + pyrimidine base + sugar + phosphorous
Molecular Genetics