Which of the following statements is/are correct?
(a) Nucleotide contains 2'-5' phosphodiester bond for the DNA backbones
(b) Quaternary structure of protein is a compact folded structure that describes how multiple independent polypeptide chains bend, fold, and interact with one another.
(c) During denaturation of protein secondary and tertiary structure are destroyed, and primary structure is retained.
(d) Enthalpy of enzymatic hydrolysis of sucrose is greater than acid catalysed hydrolysis of sucrose.
1. a, b, c
2. b, c
3. a, d
4. b, c, d