A nitrogen base is linked to pentose sugar through
A
Hydrogen bond
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B
Glycosidic bond
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C
Phosphodiester bond
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D
Peptide bond
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Solution
The correct option is B Glycosidic bond DNA is made up of nitrogenous base, phosphate and sugar. It has deoxyribose sugar which has hydrogen at second carbon. The sugar is linked to nitrogenous base at the first carbon by glycosidic bond.