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Question

Identify this structure.
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A
Uracil
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B
Adenosine
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C
Adynylic Acid
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D
Cholesterol
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Solution

The correct option is B Uracil
Uracil is a demethylated form of thymine. It is a primary nitrogenous base of RNA. It pairs with the adenine by forming two hydrogen bonds. It is replaced by thymine in DNA.
So, the correct answer is option A.

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