This is an example of vestigial structure.
Vestigial structures are structures (cells, tissues and organs) found in an organism that has lost most or all of its primitive function through evolution. The vestigial structure has performed vital functions in the organism in the past but as there are changes in species as a result of natural selection, the structure became less important until it no longer functions. A reduced nonfunctional digit on the paws of dogs known as a dewclaw is an example of vestigial structure.
<span>DNA (deoxyribonucleic acid). The DNA makes up genes, and the genes make up chromosomes.</span>
Aminoacyl-tRNA synthetase is an enzyme whose function is to synthesize charged tRNA, specific tRNA biding to specific amino acid such as Met-tRNA(AUG).
