When Solving a Protein Structure Using X-Ray Crystallography,the Crystallographer Generates

question 58

Multiple Choice

When solving a protein structure using X-ray crystallography,the crystallographer generates a 3-D grid called an electron density map based on the observed diffraction pattern.The higher the resolution,the more detailed the electron density map and therefore the easier it is to identify what atoms (and therefore what amino acids) are in a given position.Based on the three choices below,in which of the following groups could the two of amino acids be the easiest to differentiate regardless of resolution?
(I) Leucine vs.Isoleucine
(II) Phenylalanine vs.Alanine
(III) Glutamate vs.Glutamic acid

• A)Those in both groups I and II could be differentiated
• B)Those in both groups I and III could be differentiated
• C)Only those in group II could be differentiated
• D)Only those in group III could be differentiated
• E)Only those in groupI could be differentiated

Grasp the concept of media richness and its impact on communication effectiveness.

Acknowledge the ethical considerations in business communication, including information accuracy and completeness.

Recognize the stages of the writing process and the importance of proper planning and organization.

Understand the role of feedback in effective communication.

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Definitions:

Action Potentials

Quick changes in the electrical charge of a neuron's membrane, allowing the transmission of nerve impulses.

Ventricles Repolarize

The process by which the heart's ventricles return to their resting state after contraction, crucial for heart rhythm.

Pacemaker Potential

The self-generated electrical potential that triggers the spontaneous depolarization of cells in the heart's pacemaker regions, leading to heartbeat regulation.

Depolarization

A reduction in the difference of electric potential across a cell membrane, leading to the possibility of producing an action potential.