Which of Following Describes Proofreading for the Addition of Amino

question 36

Multiple Choice

Which of following describes proofreading for the addition of amino acids (AAs) to the growing peptide?

• A)An RNA component of the ribosome ensures that the correct AA is associated with the A site before addition occurs.
• B)An RNA component of the ribosome ensures that the correct AA has been added,but before the peptidyl-tRNA is shifted to the P site.
• C)The EF-Tu • GTP complex ensures that the correct AA is associated with the A site before addition occurs.
• D)EF-G ensures that the correct AA has been added,but before the peptidyl-tRNA is shifted to the P -site.
• E)No proofreading of this process occurs.

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Definitions:

Myocardium

The thick middle layer of the heart wall composed of cardiac muscle cells; responsible for the heart's contractile activity.

Epicardium

The outermost layer of the heart's wall, part of the heart's protective covering and involved in the production of pericardial fluid.

Endocarditis

Inflammation of the inner layer of the heart, often affecting the heart valves.

Heart Wall

The heart wall is the muscular structure that composes the heart, consisting of three layers: the epicardium, the myocardium, and the endocardium.