Amino Acids, proteins and DNA multiple choice questions

Amino Acids, Proteins and DNA

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Part of the structure of a protein is shown.

Diagram showing part of the structure of a protein with different amino acids.

How many different amino acids were used to form this part of the structure?

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Glycine and alanine are the two simplest amino acids.

Structures of the amino acids glycine and alanine

Glycine and alanine combine to form two possible dipeptides.

What are the structures of these dipeptides?

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The best method for separating a mixture of amino acids in solution, for the purpose of identification, is

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Chromatography may be used to separate mixtures of amino acids. This is best explained by the fact that different amino acids have different interactions with

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Which statement about DNA is not true?

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Which statement describes the secondary structure of a protein?

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