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23 votes
Which defines a codon? *

a protein that begins transcription by breaking apart h bonds
three nucleotide bases on mrna that specify one amino acid
the strong bond between two complementary nitrogen bases
a free-floating base that attaches to an open dna strand

User Amen Ayach
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1 Answer

12 votes
a codón is: three nucleotide based on mrna that specifies one amino acid.
User Bullgare
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