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..., in two steps, protein; or more correctly tens of thousands of different proteins.

Step one: Transcription; a 'messenger Rna' copy of the nucleotide sequence, and hence the genetic information, contained within a strand of DNA is produced, processed and exported through the nuclear envelope to the waiting cytoplasmic rough endoplasmic reticulum (RER).

Step two: Translation; mRnas are fed into the ribosomes of the RER, where their information is extracted three bases at a time - that is to say, the Triplet Codons are translated into an amino acid sequence; three bases code for each amino acid.

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