Compare the Following Sequences Taken from Four Different Proteins, and Select

question 65

Multiple Choice

Compare the following sequences taken from four different proteins, and select the answer that BEST characterizes their relationships. A
B
C
1 DVEKGKKIDIMKCS
HTVEKGGKHKTGPNLH
GLFGRKTGQAPGYSYT
2 DVQRALKIDNNLGQ
HTVEKGAKHKTAPNVH
GLADRIAYQAKATNEE
3 LVTRPLYIFPNEGQ
HTLEKAAKHKTGPNLH
ALKSSKDLMFTVINDD
4 FFMNEDALVARSSN
HQFAASSIHKNAPQFH
NLKDSKTYLKPVISET

• A) Based only on sequences in column B, protein 4 reveals the greatest evolutionary divergence.
• B) Comparing proteins 1 and 2 in column A reveals that these two proteins have diverged the most throughout evolution.
• C) Protein 4 is the protein that shows the greatest overall homology to protein 1.
• D) Proteins 2 and 3 show a greater evolutionary distance than proteins 1 and 4.
• E) The portions of amino acid sequence shown suggest that these proteins are completely unrelated.

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Definitions:

Psychopathic

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PCL-R

The Psychopathy Checklist-Revised, a diagnostic tool used to assess the presence of psychopathy in individuals.

Antisocial Personality Disorder

A mental health disorder characterized by a long-term pattern of disregard for, or violation of, the rights of others.