Normal Hemoglobin Is a Tetramer, Consisting of Two Molecules of β

question 70

Multiple Choice

Normal hemoglobin is a tetramer, consisting of two molecules of β hemoglobin and two molecules of α hemoglobin. In sickle-cell disease, as a result of a single amino acid change, the mutant hemoglobin tetramers associate with each other and assemble into large fibres. Based on this information alone, we can conclude that sickle-cell hemoglobin exhibits

• A)altered primary structure.
• B)altered secondary structure.
• C)altered tertiary structure.
• D)altered quaternary structure.
• E)altered primary structure and altered quaternary structure; the secondary and tertiary structures may or may not be altered.

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Definitions:

Legitimate Power

Power that is recognized as rightful or lawful, often derived from a position of authority or social structure.

Expert Power

The influence and authority a person has as a result of their expertise, skills, or knowledge.

Referent Power

A form of power that stems from being admired or respected, often due to charismatic qualities or identification with the person who has the power.

Legitimate Power

The authority an individual has because of their position in an organization's hierarchy, contributing to their ability to influence others.