Biomolecules

Multiple Choice Questions

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Which of the following compound shows aromatic properties ?

  • Valine

  • Leucine

  • Serine

  • Tyrosine

D.

Tyrosine

Among all the given options, tyrosine has aromatic properties. Tyrosine is α-amino β(p-hydroxyphenyl) propionic acid. It has aromatic nucleus. It is aromatic amino acid.

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    A tripeptide is written as glycine-alanine -glycine. The correct structure of the tripeptide is

    Answer

    Amino acids have peptide linkage which is :

    • -CO-NH-

    • -C-NH2

    • SO-NH-

    • -CO-N-

    Answer

    The non-essential amino acid among the following is:

    • Leucine

    • Alanine

    • Lysine

    • Valine

    Answer

    Which of the following contributes to the double helical structure of DNA ?

    • Hydrogen bond

    • Covalent bond

    • Disulphide bond

    • van der Waals' force

    Answer
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