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Question

Which of the following bases is not present in DNA?

A
Adenine
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B
Guanine
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C
Thymine
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D
Uracil
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Solution

The correct option is D Uracil
DNA contains four bases namely adenine (A), guanine (G), cytosine (C) and thymine (T).
RNA also contains four bases, adenine (A), guanine (G), thymine (T) and uracil (U). Hence (d) is correct.

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