What is mRNA?
A RNA copy of a DNA gene <--- Gradpoint/NovaNet
Messenger RNA (mRNA) is a form of RNA that codes for amino
During transcription a sequence of mRNA is made from a
corresponding sequence of DNA. In a eukaryote, the mRNA is then
processed and sent outside the nucleus to be translated by a
ribosome in the cytoplasm.
As for a prokaryote (which has no nucleus), the mRNA is already
in the cytoplasm and just needs to be translated by a ribosome also
in the prokaryote's cytoplasm.