Biological Glossary | What is Conserved Sequence?
In biology, conserved sequences refer to molecular sequences with high similarity or identity. These sequences can be nucleic acid sequences (such as RNA or DNA sequences), protein sequences, structures in proteins, or sequences within carbohydrates. Despite their high similarity, these sequences come from different species or different molecules produced by the same organism. From the perspective of cross-species conservation, the existence of these sequences implies that during the evolutionary process of different species, a specific gene sequence has been preserved. By analyzing the genomes of organisms at different stages of evolution, some sequences in the genomes of different organisms are surprisingly similar. These similar sequences are known as conserved sequences. Many scientists believe that mutations in the gene regions of conserved sequences could lead to the inability of a life form to survive or be eliminated by natural selection.
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