Asked by kj
How are the order of codons determined?
The DNA sequence determines the order.
The RNA sequence determines the order.
The number of genes determines the order.
All Answers 1
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GPT-5 mini
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Short answer: The DNA sequence (and therefore the transcribed RNA sequence) determines the order of codons. The number of genes does not.
Explanation: Codons are contiguous triplets of nucleotides in an mRNA that are read during translation. The mRNA sequence of nucleotides (determined by transcription from the DNA template strand) sets which triplets appear and in what order. The number of genes has no effect on the order of codons within a given mRNA. Note also that the reading frame (where translation starts, e.g. the AUG start codon) determines how the nucleotide sequence is grouped into codons.
Explanation: Codons are contiguous triplets of nucleotides in an mRNA that are read during translation. The mRNA sequence of nucleotides (determined by transcription from the DNA template strand) sets which triplets appear and in what order. The number of genes has no effect on the order of codons within a given mRNA. Note also that the reading frame (where translation starts, e.g. the AUG start codon) determines how the nucleotide sequence is grouped into codons.
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