Textbook Question
Exon shuffling is a proposal that relates exons in DNA to the repositioning of functional domains in proteins. What evidence exists in support of exon shuffling?
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11. Translation
Proteins
Multiple Choice
Which of the following protein structures describes a 3D structure of one polypeptide chain?
A
Primary structure
B
Secondary structure
C
Tertiary structure
D
Quaternary structure
Verified step by step guidance1
Understand the different levels of protein structure: Primary, Secondary, Tertiary, and Quaternary.
Primary structure refers to the linear sequence of amino acids in a polypeptide chain.
Secondary structure involves local folding into structures such as alpha-helices and beta-sheets, stabilized by hydrogen bonds.
Tertiary structure describes the overall 3D shape of a single polypeptide chain, including interactions between side chains.
Quaternary structure involves the assembly of multiple polypeptide chains into a functional protein complex.
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