What Level(s)of Protein Structure Could Be Affected by a Nucleotide

question 46

Multiple Choice

What level(s) of protein structure could be affected by a nucleotide substitution that results in an amino acid change in a polypeptide? (Select all that apply. )

• A)primary structure
• B)secondary structure
• C)tertiary structure
• D)quaternary structure
• E)There will be no structural changes.

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Definitions:

Benzene

A colorless, volatile liquid hydrocarbon present in coal tar and petroleum, used in chemical synthesis.

Resonance Structures

Representations of a molecule where the chemical connectivity is the same but the electrons are distributed differently around the structure.

Cyclic

Pertaining to chemical compounds that contain a ring structure within their molecules.

Lewis Structure

A diagrammatic method for representing the valence electrons of atoms within a molecule, indicating bonds between them.