Biomolecules

Multiple Choice Questions

Advertisement
Zigya App

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

  • Hydrogen bond

  • Covalent bond

  • Disulphide bond

  • van der Waals' force

A.

Hydrogen bond

According to double helical model of DNA (proposed by Watson and Crick), DNA molecule contains two deoxyribonuclide chains which are spirally coiled around each other on a common axis. These two chains are held together by the formation of hydrogen bonds,

                              

  • Switch
    • Advertisement

    The non-essential amino acid among the following is:

    • Leucine

    • Alanine

    • Lysine

    • Valine

    Answer

    Which of the following compound shows aromatic properties ?

    • Valine

    • Leucine

    • Serine

    • Tyrosine

    Answer

    Amino acids have peptide linkage which is :

    • -CO-NH-

    • -C-NH2

    • SO-NH-

    • -CO-N-

    Answer

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

    Answer
    Advertisement
    Advertisement