Biology
Genetics

What is mRNA?

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May 23, 2015 12:49AM

A RNA copy of a DNA gene <--- Gradpoint/NovaNet

Messenger RNA (mRNA) is a form of RNA that codes for amino

acids.

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.


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