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Structure and Properties of Amino Acids

Structure and Properties of Amino Acids
Coomassie Blue stains the proteins by reacting with

peptide bonds
arginine residues
free c-termini
aromatic ring

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Structure and Properties of Amino Acids
What is the heaviest of the twenty amino acids?

Histidine
Phenylalanine
Tyrosine
Tryptophan

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Structure and Properties of Amino Acids
Serine and threonine are polar amino acids due to

reactive hydroxyl group in the side chain
reactive alcoholic group in the side chain
reactive aldehyde group in the side chain
reactive keto group in the side chain

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Structure and Properties of Amino Acids
Which of the following is not the hydrophobic and aromatic amino acid?

Phenylalanine
Tyrosine
None of these
Tryptophan

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Structure and Properties of Amino Acids
Which of the following is a nonprotein amino acid?

None of these
Cystine
Dopamine
Hydroxylysine

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

Valine
Alanine
Asparagine
Proline

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MORE MCQ ON Structure and Properties of Amino Acids

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