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Suppose a person has a mutation in their DNA and the first triplet for the gene coding for insulin is C C C (instead of C C A). Determine what amino acid the new DNA triplet codes for. Will this person be diabetic?



Answer :

According to this nifty chart, CCC codes for the same amino acid as CCA (proline).

Since CCC and CCA are both codons for the amino acid proline, there will be no difference in the structure of insulin. Moreover, there will be no change in function, and the person will not be diabetic C:

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Suppose a person has a mutation in their DNA and the first triplet for the gene coding for insulin is C C C (instead of C C A). The amino acid the new triplet codes for is still proline. The person will still not be diabetic.

As the genetic code is known for its redundancy nature, meaning more than one DNA triplet can code for one amino acid.

C C C codes for proline and at the same time C C A also codes for proline, so insulin will still be produced and the individual will still have the correct sequence if there is no other influencing mutation and will also not be diabetic.

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