About DNAInsulin is a relatively small protein,having a total of 51 amino acids in its structure. What is the smallest number of bases on a DNA strand needed to code for insulin?

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trophyhunter1 eNotes educator| Certified Educator

Proteins are manufactured according to the genetic code which is located in the DNA. It is then copied by the mRNA in the process of transcription. The mRNA travels to a ribosome, where this code is translated and a protein is manufactured. If there are 51 amino acids translated on the ribosome from this code, then each amino acid in turn, is manufactured according to a codon which is a triplet of 3 nitrogenous bases.  If you multiply 51 amino acids by 3, then you will arrive at 153 bases needed to code for insulin. These bases located on a DNA strand will contain the instructions to produce the protein insulin.