A) polynucleotide
B) nucleotides
C) nucleosides
D) oligonucleotide
Correct Answer: C
Solution :
A nucleoside is made up of sugar molecule and organic nitrogen bases. The sugar may be 2-deoxyribose (in DNA or ribose in RNA. There are total five nitrogen bases, i.e., adenine, guanine (purines) and cytosine, thymine (pyrimidine) are present in DNA. A nucleotide is formed by the union of a phosphate group with a nucleoside.
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