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Structure and Properties of Amino Acids

Structure and Properties of Amino Acids
Which of the following amino acids can form hydrogen bonds with their side (R) groups?

Glutamine
Aspartic acid
All of these
Asparagine

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Structure and Properties of Amino Acids
Stereo chemical configuration of all a-amino acids derived from proteins is

L
D
None of these
L and D

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Structure and Properties of Amino Acids
Which amino acid when exposed to ninhydrin produces a brown color?

Alanine
Proline
Asparagine
Valine

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Structure and Properties of Amino Acids
Which of the following amino acid is known as half-cystine residue?

Histidine
Isoleucine
Valine
Cysteine

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Structure and Properties of Amino Acids
Protein fluorescence arises primarily from which residue?

Phenylalanine
Arginine
Tyrosine
Tryptophan

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Structure and Properties of Amino Acids
Which of the following pairs of amino acids would carry a negative charge on their side chain at pH 8.0?

Histidine & Lysine
Aspartate & Glutamate
Asparagine & Glutamine
Leucine & Glycine

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