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In the polynucleotide chain of DNA, a nitrogenous base is linked to the –OH of
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a
1' C pentose sugar
b
2' C pentose sugar
c
3' C pentose sugar
d
5' C pentose sugar
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Correct option is A
In a polynucleotide chain, a nitrogenous base is linked to the OH of 1' C pentose sugar through a N-glycosidic linkage to form a nucleoside. When a phosphate group is linked to OH of 5' C of a nucleoside through phosphoester linkage, a corresponding nucleotide (or deoxynucleotide depending upon the type of sugar present) is formed. Two nucleotides are linked through 3'-5' phosphodiester linkage to form a dinucleotide.Similar Questions
In some viruses, the flow of information is in reverse direction, i.e. from RNA to DNA. Can you suggest a simple name to the process?
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