Concept explainers
(a)
Interpretation:
In α-helix of protein and the double helix of DNA, the units that repeat in the backbone of the polymer chain has to be compared.
Concept Introduction:
The proteins are the
The DNA molecule is also a polymer which is made up of
(b)
Interpretation:
In α-helix of protein and the double helix of DNA, the projection of substituents in space along the backbone relative to the axis of the helix has to be compared.
Concept Introduction:
The proteins are the polymers which are made up of the amino acids. The amino acids are linked together by peptide bonds.
The DNA molecule is also a polymer which is made up of nucleic acids. The nucleic acids are made of nucleotides. The nucleotides contains nitrogen base, sugar molecule and phosphate ion. The nucleotides are linked by phosphodiester bonds to form the nucleic acid.
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Organic Chemistry
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- 22-49 Based on your knowledge of the chemical properties of amino acid side chains, suggest a substitution for leucine in the primary structure of a protein that would probably not change the character of the protein very much.arrow_forwardDo the amino acid sequences: valine-asparagine and asparagine-valine represent the same compound? Explain.arrow_forwardOn complete hydrolysis, a polypeptide gives two alanine, one leucine, one methionine, one phenylalanine, and one valine residue. Partial hydrolysis gives the following fragments: Ala-Phe, Leu-Met, Val-Ala, Phe-Leu. It is known that the first amino acid in the sequence is valine and the last one is methionine. What is the complete sequence of amino acids?arrow_forward
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