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DNA encodes RNA, which encodes protein. DNA is transcribed to make messenger RNA (mRNA). The mRNA sequence (dark red strand) is complementary to the DNA sequence (blue strand). On ribosomes, transfer RNA (tRNA) reads three codons at a time in mRNA to bring together the amino acids that link up to make a protein.
See image 2548 for a labeled version of this illustration and 2549 for a labeled and numbered version.
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