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:

Research Questions

Specific questions that guide a study, aiming to discover new information or understanding about a topic.

Descriptive Questions

Questions designed to elicit descriptions about phenomena, allowing researchers to gather information about characteristics or attributes.

Closed-ended Research Questions

Questions structured to limit the range of responses, typically forcing a choice among predefined options.

Variables

Elements or factors that can change and affect the outcome of a study or experiment.