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How is mRNA produced in the nucleus of a cell

Helicase breaks hydrogen bonds between the 2 DNA strands to separate them1 DNA strand acts as template (the sense strand)Free RNA nucleotides then attach to exposed complementary bases on the sense strand by base pairingRNA polymerase joins the RNA nucleotidesPre-mRNA strand is formed, then spliced to remove the introns

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How is mRNA produced in the nucleus of a cell

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