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Question
Nitrogenous molecules ______ does not present on mRNA strands.
Options
Adenine
Guanine
Uracil
Thymine
MCQ
Fill in the Blanks
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Solution
Nitrogenous molecules Thymine does not present on mRNA strands.
Explaination:
Thymine is a pyrimidine base found exclusively in DNA molecules. In RNA strands, including mRNA, uracil replaces thymine and pairs with Adenine during transcription.
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