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Standard XII
Biology
Sugars in Nucleic Acid
Nitrogenous b...
Question
Nitrogenous base that is present in RNA but not in DNA
A
Deoxyribose
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B
Ribose
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C
Uracil
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D
Cytosine
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E
Thymine
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Solution
The correct option is
E
Uracil
Deoxyribose and ribose are sugars.
DNA has purines (adenine and thymine) and phyrimidines (guanine and cytosine).
Option C is correct as RNA contain uracil in place of thymine.
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