Examlex
Which of the following pure substances has the highest normal melting point?
Nucleic Acid
Nucleic acids are biopolymers, or large biomolecules, essential for all known forms of life, including DNA and RNA, which carry genetic information.
Alpha-Helical Structure
A common motif in the secondary structure of proteins, characterized by a right-handed coil that provides structural support.
Hydrogen Bonds
Weak bonds formed between a hydrogen atom covalently bonded to one electronegative atom and another electronegative atom, playing a critical role in the structure of water and biological molecules.
Ionic Interactions
Forces of attraction or repulsion between ions or molecules with different charges.
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