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All living things need energy;it is requirement for life. In a a typical cell ATP, the hogh energy, is produced in the mitochondria in the presence of sugar(glucose and oxygen
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.