Nucleic acids

The nucleic acids are divided into two types which is:

• deoxyribonucleic acid (DNA)
• ribonucleic acid (RNA)

Functions of nucleic acid:

 DNA

1.  Chemical basis of heredity-bank of genetic information.
2. Maintain the identity of different species over millions of years.
3. Every aspect of cellular function is under the control of DNA.
4. DNA is organized into genes, the fundamental units of  genetic information.
5. Genes control the synthesis of protein through the mediation of RNA.

RNA

1. Messenger RNA(mRNA) - Specifies the sequence of amino acids in the protein synthesis, the   translation.
2. Ribosomal RNA(rRNA) - It is found in combination with proteins and associated with the structure and function of ribosomes, the site of protein synthesis.
3. Transfer RNA(tRNA) - To deliver amino acids to ribosomes for protein synthesis.
4. RNA is the genetic material that carrying hereditary information in many viruses.