Definition of Messenger Rna
Messenger RNA or mRNA is a biological molecule that is composed of a single strand of RNA. This strand of RNA is formed during the process of transcription and hence is complementary to one of the strands of DNA molecule. This mRNA is the version of RNA that moves out of the cell nucleus and relocates in the cytoplasm where the synthesis of proteins (translation) takes place.
In the process of translation, the ribosome moves with this mRNA and reads the sequence of its bases. After that, its genetic code is translated by codon and the corresponding protein is formed.