Question: Human and horse insulin both have two polypeptide chains, with one chain containing 21 amino acids and the other containing 30 amino acids. They differ

Human and horse insulin both have two polypeptide chains, with one chain containing 21 amino acids and the other containing 30 amino acids. They differ in primary structure at two places. At position 9 in one chain, human insulin has Ser and horse insulin has Gly; at position 30 in the other chain, human insulin has Thr and horse insulin has Ala. how must the DNA for the two insulin’s differ?

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Position 9 Horse amino acid Gly mRNA codons 5 3 GGU GGC GGA GGG CCA ... View full answer

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