[01] M. Yamuna, School of Advanced Sciences, Vellore Institute of Technology, Vellore, India. [02] A. Elakkiya, School of Advanced Sciences, Vellore Institute of Technology, Vellore, India.

DNA sequencing is important to apply to the human genome. It allows scientists to sequence genes and genomes. Once genes are identified and analyzed from sequence information, scientists can look for mutations that cause disease, thereby providing valuable medical information. In this paper we proposed a method of encrypting DNA sequence using pre – order tree traversal.

Decryption, Encryption, Tree Traversal, Pre – Order

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