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

question 58

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 fibers. 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:

Relevant Information

Information that is applicable to the current decision-making process, having the ability to impact the outcome or decision.

Capital Budgeting

The process of planning and evaluating investments in long-term assets to maximize returns or meet financial goals.

Discounted Cash Flow

A valuation method used to estimate the attractiveness of an investment opportunity, calculating the present value of expected future cash flows.

Internal Rate Of Return

A financial metric used to estimate the profitability of potential investments, calculated as the rate of return that makes the net present value of all cash flows from a particular project equal to zero.