Suppose some codons mapped two different amino acids. what would the effect be on your translation of the coded message? what would be the effect on the production of the protein?

This will be detrimental on the production of protein. One amino acid can be coded by different codons but one codon cannot code for two different amino acid. The finished protein will not be the same everytime, and since the amino acids have properties that determine protein structure and folding, then the function will not be congruent every time. 

For instance, if a hypothetical codon AAT codes for both glutamic acid and valine then a normal person will have both normal red blood cells and sickle cells since sickle cell disease is caused by the substitution of valine instead of glutamic acid on the position 6 of the beta subunit of hemoglobin. 

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