An Altered Version of Glycogen Synthase Is Produced in the Laboratory

question 14

Multiple Choice

An altered version of glycogen synthase is produced in the laboratory, with one of its amino acid residues substituted for another. Unlike normal glycogen synthase, the activity of the mutant protein is unaffected by glycogen synthase kinase-3. Which mutation is MOST likely to produce this effect?

• A) Cys \(\rightarrow\) Ser
• B) Ile \(\rightarrow\) Thr
• C) Ser \(\rightarrow\) Ala
• D) Cys \(\rightarrow\) Met
• E) Thr \(\rightarrow\) Ser

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Definitions:

Secure Individuals

People who display confidence and self-assurance, often as a result of stable attachments and positive relationships.

Secure

In Bartholomew’s adult attachment style typology, individuals who have a positive view of themselves and a positive model of others, expecting close others to be supportive and available.

Modal Personal Orientations

The typical or most common attitudes, behaviors, and orientations that an individual exhibits in various situations.

Enterprising Style

Refers to a personality trait or behavior characterized by initiative, competitiveness, and the desire to succeed or achieve.