what is the func of mrna
Report Abuse. mRNA acts as a messenger to tell the cells how to function. DNA is divided in the nucleus into mRNA, then sent out of the nucleus through the nuclear membrane and goes off to ribosomes to create different proteins and control activities within the cell.:). Source(s): Just finished Biology.ÎHabeas CorpusÎ¸ Â· 8 years ago.NA is divided in the nucleus into mRNA, then sent out of the nucleus through the nuclear membrane and goes off to ribosomes to create different proteins and control activities within the cell. :). Source(s): Just finished Biology. ÎHabeas CorpusÎ¸ Â· 8 years ago.