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Biology 10 Online
OpenStudy (anonymous):

why is rna necessary to act as a messenger? why can't the code be taken directly from the dna

OpenStudy (anonymous):

Because there's one copy of the gene in DNA (2 for diploid species including humans). It would take a LONG time to make an appreciable amount of protein from two copies of the gene. But the cell can make many copies of mRNA to quickly make larger amounts of the desired protein.

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