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s2008m [1.1K]
4 years ago
13

Where is the start codon located? where is the start codon located? in the dna just upstream of where transcription starts at th

e upstream end of the 3' untranslated region (utr) at the downstream end of the 5' untranslated region (utr) at the very start (5' end) of the mrna?
Biology
1 answer:
noname [10]4 years ago
8 0
The answer is 'at the very start (5' end) of the mrna. According to the central dogma, dna -> rna -> protein. messenger rna carries genetic code from dna to be translated into protein by the ribosome. One difference between Rna and dna is that rna has uracil while dna has thiamine bases. Therefore the start codon on mrna will be AUG rather ATG.
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