Based on the degeneracy properties in genetic codes,we propose a new idea on the similarity search: a search strategy based on triplet codes and the degeneracy properties.

• 根据遗传密码的简并特性提出了一种相似性搜索的新思想:以三联码为基础考虑简并特征的搜索策略似可将检出效率提高两倍。