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What's the difference between codons and DNA triplets?

Sorry. Stupid question. A level AQA exam board.

Please help, I don't get it. Are they the same thing?

Thanks
DNA triplets are sequences of 3 DNA bases on a DNA strand
Codons are sequences of 3 RNA bases on an mRNA strand

(So basically one refers to the DNA, the other refers to the mRNA that is created from the DNA via transcription)

Hope this helps!
(edited 12 months ago)
Reply 2
So basically, they are the same thing but just one is for DNA and one is for mRNA.

Thank you so much!
Original post by imloki
So basically, they are the same thing but just one is for DNA and one is for mRNA.

Thank you so much!


Yep! Just a reminder though that the DNA triplet and mRNA codon are complimentary to each other, so their codes are not the same, but basically opposites. E.g. if the DNA triplet is ACG, the mRNA codon would be UGC (U because RNA has uracil instead of thymine).
And there are also anti-codons which are the tRNA version (they are also complimentary to the mRNA codon so are identical to the DNA triplet except where the DNA triplets have T, the tRNA anti-codons have U)
Reply 4
Original post by Felix'sfreckles
Yep! Just a reminder though that the DNA triplet and mRNA codon are complimentary to each other, so their codes are not the same, but basically opposites. E.g. if the DNA triplet is ACG, the mRNA codon would be UGC (U because RNA has uracil instead of thymine).
And there are also anti-codons which are the tRNA version (they are also complimentary to the mRNA codon so are identical to the DNA triplet except where the DNA triplets have T, the tRNA anti-codons have U)


Thank you for your help c:

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