<P> In molecular biology , the five - prime cap ( 5 ′ cap ) is a specially altered nucleotide on the 5 ′ end of some primary transcripts such as precursor messenger RNA . This process , known as mRNA capping , is highly regulated and vital in the creation of stable and mature messenger RNA able to undergo translation during protein synthesis . Mitochondrial mRNA and chloroplastic mRNA are not capped . </P>
<P> In molecular biology , the five - prime cap ( 5 ′ cap ) is a specially altered nucleotide on the 5 ′ end of some primary transcripts such as precursor messenger RNA . This process , known as mRNA capping , is highly regulated and vital in the creation of stable and mature messenger RNA able to undergo translation during protein synthesis . Mitochondrial mRNA and chloroplastic mRNA are not capped . </P>
which step of eukaryotic mrna processing helps in the initiation of translation
which step of eukaryotic mrna processing helps in the initiation of translation
capping
capping