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Q.

Which of the following bases is not present in RNA?

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a

Adenine 

b

Thymine

c

Cytosine

d

Guanine 

answer is B.

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Detailed Solution

 Thymine is the base that is not present in RNA.

 In RNA, there are four nitrogenous bases namely adenine, guanine, cytosine, and uracil. In DNA, there are also four nitrogenous bases, namely adenine, guanine, cytosine, and thymine. Thus, Thymine is the base that is not present in the RNA.

Hence, the correct answer is option B) Thymine.

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