RNA Types · Botany

The poly-A tail of a mature eukaryotic mRNA is added to which end?

  1. 5' end
  2. 3' end
  3. Both ends
  4. Middle of the sequence
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Correct answer: 3' end

A string of adenine nucleotides is added to the 3' end of mRNA after transcription. This tail enhances the stability of the mRNA and aids in its export from the nucleus.

Difficulty: Medium Question 16 of 20

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