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After transcription begins, several steps must be completed before the fully processed mrna is ready to be used as a template for protein synthesis on the ribosomes.which three statements correctly describe the processing that takes place before a mature mrna exits the nucleus?

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arelyhernandez1
1. The DNA strand unwinds.
2. One strand becomes a template. It get's used for RNA Polymerase.
3. RNA Polymerase puts in RNA Nucleotides one at a time. Then, the new strand is made (Messages) 
After all of this happens it leaves the Nucleus to the Ribosome.

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