Answer:
The correct answer is - option 2. (chemical structure of the nucleotide)
Explanation:
Nucleic acid, DNA and RNA stores genetic information which helps in produces various proteins and for the next generation of the cells. Nucleic acids are made up of monomers of nucleotides joined together to form the nucleic acids. Each nucleotide has sugar, a nitrogenous base, and phosphate in the structure that joined to form a helix structure.
Thus, the correct answer is - option 2.
