You Are Working on an Insulin-Binding Protein from Fish

question 62

Essay

You are working on an insulin-binding protein from fish.The beginning of the coding sequence of the gene is shown below.You find a mutant in the gene that cannot bind insulin (also shown below).Among a population of fish that have the gene for the mutant protein, you find one that produces a variant of this protein that can now bind insulin again (DNA sequence also shown below).What kind of mutation is this new variant? (Use a genetic rather than a biochemical classification.)

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Definitions:

High-Income Countries

Nations characterized by high gross national income per capita, advanced economic infrastructure, and a high standard of living.

Birth Rates

The number of live births per thousand people in a population over a given period of time, reflecting the rate at which new individuals are added to the population.

Low-Income Countries

Nations with a gross national income (GNI) per capita significantly lower than that of higher-income countries.

Middle-Income Countries

Nations with a gross national income per capita that falls between the World Bank's defined limits for low-income and high-income countries.