Concept explainers
(a)
Interpretation: The number of different primary structures possible for a four-amino-acid segment of a protein, if three of the amino acids present must be identical has to be stated.
Concept introduction: The primary protein structure is the order of linking of the amino acids in proteins. The primary protein structure includes the number of amino acids linked, kind of amino acids present and the order of attachment of amino acids.
(b)
Interpretation: The number of different primary structures possible for a four-amino-acid segment of a protein, if four amino acids must be different has to be stated.
Concept introduction: The primary protein structure is the order of linking of the amino acids in proteins. The primary protein structure includes the number of amino acids linked, kind of amino acids present and the order of attachment of amino acids.
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Organic And Biological Chemistry
- Which of the following describes the primary structure of proteins? a. The collective shape assumed by all of the chains in a protein containing multiple chains. b. The folding of an individual protein molecule. c. The regular repeated shape of the protein molecules backbone. d. The sequence of amino acids bonded together by peptide bonds.arrow_forwardDraw a segment of the backbone of a protein that is long enough for three peptide linkages to be present.arrow_forwardWhich of the following are true concerning the chemical bond that forms between the carboxyl (RCOOH) group of one amino acid and the amino (RCNH2) group of another? a.The bond is called a peptide bond. b.It is formed by inserting a water molecule between them. c.It is formed by a dehydration reaction. d.A polypeptide has more of these bonds than a protein.arrow_forward
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