DNA: Deoxyribonucleic acid, a self-replicating material which is the main constituent of chromosomes and the carrier of genetic information.

Epicanthal Fold: A fold of skin of the upper eyelid that covers the inner corner of the eye and which runs from nose to the inner side of the eyebrow.

Philtrum: The vertical groove between the base of the nose and the border of the upper lip.

RNA: Ribonucleic acid, which acts as a messenger that carries instructions from DNA for controlling the synthesis of proteins.