Number of potential reading frames that are present in mRNA molecule is three.
In molecular biology, reading frame is a way of dividing the sequence of nucleotides in a nucleic acid molecule into a set of consecutive and non-overlapping triplets. These triplets equate to amino acids or stop signals during translation and they are called codons.
The mRNA is single-stranded and therefore only has three possible reading frames, of which only one is translated. Codons of the mRNA reading frame are translated in 5′→3′ direction to amino acids by a ribosome to generate a polypeptide chain.
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