How do you decode DNA?

Question

UH..
so far.. all i know is
DNA-- A=T C=G
RNA-- A=U C=G

So if like.. the mRNA codon was UGG the DNA would be... ACC?
then what would be the anticodon? what the heck? i don't get this.

Answer 1

A codon is a triplet of bases on the mRNA molecule, the anticodon is the complementary sequence on the tRNA molecule, this anticodon will have the same base sequence as the original DNA molecule however U replaces T, the reason for doing this is because DNA is a permanent molecule and cannot exit the nucleus so this is why messenger RNA must be used to transfer the information into the cytoplasm to a ribosome, so in your example the anticodon would also be ACC, the tRNA anticodon with this specific sequence would and will always contain the same amino acid, so depending on the base sequence transferred from the nucleus will depend on the amino acid used by the tRNA molecule.

Answer 2

The process starts with DNA.

The mRNA is made by matching up RNA parts with the DNA of the gene.

The tRNA brings amino acids based on how the tRNA parts match with the mRNA parts.

The mRNA has codons - sets of three bases like UGG.

The tRNA has an anticodon - matching bases for the mRNA. So mRNA's UGG codon matches the tRNA's anticodon ACC.

If you try another:
the DNA says A C G T A G
the mRNA says U G C A U C
two tRNAs match ACG UAG bringing two more amino acids to help build the protein.