What are nucleic acids ? Mention their two important functions.

Explanation

### Step-by-Step Solution:

**Step 1: Definition of Nucleic Acids**
Nucleic acids are biomolecules that are essential for all forms of life. They are primarily found in the nucleus of cells and are key components of chromosomes. The two main types of nucleic acids are DNA (deoxyribonucleic acid) and RNA (ribonucleic acid).

**Step 2: Structure of Nucleic Acids**
Nucleic acids are long chain polymers made up of smaller units called nucleotides. Each nucleotide consists of three components: a sugar (ribose in RNA and deoxyribose in DNA), a nitrogenous base, and a phosphate group. The nucleotides are linked together by N-glycosidic bonds to form polynucleotide chains.

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